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313321323120 = 243513428323447
BaseRepresentation
bin1001000111100110110…
…01111111101001110000
31002221201220100100122220
410203303121333221300
520113140224314440
6355534323201040
731431252206151
oct4436331775160
91087656310586
10313321323120
1111097379a553
1250882816180
1323713955b20
1411244431928
15823be328d0
hex48f367fa70

313321323120 has 160 divisors (see below), whose sum is σ = 1046300032512. Its totient is φ = 77103952896.

The previous prime is 313321323061. The next prime is 313321323121. The reversal of 313321323120 is 21323123313.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313321323121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13351237 + ... + 13374683.

Almost surely, 2313321323120 is an apocalyptic number.

313321323120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 313321323120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (523150016256).

313321323120 is an abundant number, since it is smaller than the sum of its proper divisors (732978709392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

313321323120 is a wasteful number, since it uses less digits than its factorization.

313321323120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27759 (or 27753 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 313321323120 its reverse (21323123313), we get a palindrome (334644446433).

The spelling of 313321323120 in words is "three hundred thirteen billion, three hundred twenty-one million, three hundred twenty-three thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 39 40 48 52 60 65 78 80 104 120 130 156 195 208 240 260 312 390 520 624 780 1040 1560 3120 4283 8566 12849 17132 21415 23447 25698 34264 42830 46894 51396 55679 64245 68528 70341 85660 93788 102792 111358 117235 128490 140682 167037 171320 187576 205584 222716 234470 256980 278395 281364 304811 334074 342640 351705 375152 445432 468940 513960 556790 562728 609622 668148 703410 835185 890864 914433 937880 1027920 1113580 1125456 1219244 1336296 1406820 1524055 1670370 1828866 1875760 2227160 2438488 2672592 2813640 3048110 3340740 3657732 4454320 4572165 4876976 5627280 6096220 6681480 7315464 9144330 12192440 13362960 14630928 18288660 24384880 36577320 73154640 100423501 200847002 301270503 401694004 502117505 602541006 803388008 1004235010 1205082012 1305505513 1506352515 1606776016 2008470020 2410164024 2611011026 3012705030 3916516539 4016940040 4820328048 5222022052 6025410060 6527527565 7833033078 8033880080 10444044104 12050820120 13055055130 15666066156 19582582695 20888088208 24101640240 26110110260 31332132312 39165165390 52220220520 62664264624 78330330780 104440441040 156660661560 313321323120