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1310323230 = 23457920477
BaseRepresentation
bin100111000011001…
…1111001000011110
310101022121022120000
41032012133020132
510140420320410
6334004435130
744320364226
oct11606371036
93338538500
101310323230
11612709267
123069a8aa6
1317b6109b8
14c604b086
157a07ddc0
hex4e19f21e

1310323230 has 80 divisors (see below), whose sum is σ = 3568086720. Its totient is φ = 344979648.

The previous prime is 1310323213. The next prime is 1310323243. The reversal of 1310323230 is 323230131.

1310323230 is a `hidden beast` number, since 1 + 310 + 32 + 323 + 0 = 666.

1310323230 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 53752 + ... + 74228.

It is an arithmetic number, because the mean of its divisors is an integer number (44601084).

Almost surely, 21310323230 is an apocalyptic number.

1310323230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1310323230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1784043360).

1310323230 is an abundant number, since it is smaller than the sum of its proper divisors (2257763490).

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

1310323230 is a wasteful number, since it uses less digits than its factorization.

1310323230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20575 (or 20566 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 1310323230 is about 36198.3871187654. The cubic root of 1310323230 is about 1094.2741671316.

Adding to 1310323230 its reverse (323230131), we get a palindrome (1633553361).

The spelling of 1310323230 in words is "one billion, three hundred ten million, three hundred twenty-three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 79 81 90 135 158 162 237 270 395 405 474 711 790 810 1185 1422 2133 2370 3555 4266 6399 7110 10665 12798 20477 21330 31995 40954 61431 63990 102385 122862 184293 204770 307155 368586 552879 614310 921465 1105758 1617683 1658637 1842930 2764395 3235366 3317274 4853049 5528790 8088415 8293185 9706098 14559147 16176830 16586370 24265245 29118294 43677441 48530490 72795735 87354882 131032323 145591470 218387205 262064646 436774410 655161615 1310323230