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30335115520 = 285172116607
BaseRepresentation
bin11100010000000111…
…010010000100000000
32220022002212112110001
4130100013102010000
5444111242144040
621534042445344
72122506141013
oct342007220400
986262775401
1030335115520
1111957422306
125a67203854
132b259393c8
14167ab5d37a
15bc827259a
hex7101d2100

30335115520 has 144 divisors (see below), whose sum is σ = 77312648448. Its totient is φ = 11364433920.

The previous prime is 30335115497. The next prime is 30335115527. The reversal of 30335115520 is 2551153303.

It is a super-2 number, since 2×303351155202 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30335115527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4588057 + ... + 4594663.

It is an arithmetic number, because the mean of its divisors is an integer number (536893392).

Almost surely, 230335115520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30335115520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38656324224).

30335115520 is an abundant number, since it is smaller than the sum of its proper divisors (46977532928).

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

30335115520 is a wasteful number, since it uses less digits than its factorization.

30335115520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6856 (or 6842 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 28.

Adding to 30335115520 its reverse (2551153303), we get a palindrome (32886268823).

The spelling of 30335115520 in words is "thirty billion, three hundred thirty-five million, one hundred fifteen thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 16 17 20 32 34 40 64 68 80 85 128 136 160 170 211 256 272 320 340 422 544 640 680 844 1055 1088 1280 1360 1688 2110 2176 2720 3376 3587 4220 4352 5440 6607 6752 7174 8440 10880 13214 13504 14348 16880 17935 21760 26428 27008 28696 33035 33760 35870 52856 54016 57392 66070 67520 71740 105712 112319 114784 132140 135040 143480 211424 224638 229568 264280 270080 286960 422848 449276 459136 528560 561595 573920 845696 898552 918272 1057120 1123190 1147840 1394077 1691392 1797104 2114240 2246380 2295680 2788154 3594208 4228480 4492760 4591360 5576308 6970385 7188416 8456960 8985520 11152616 13940770 14376832 17971040 22305232 23699309 27881540 28753664 35942080 44610464 47398618 55763080 71884160 89220928 94797236 111526160 118496545 143768320 178441856 189594472 223052320 236993090 356883712 379188944 446104640 473986180 758377888 892209280 947972360 1516755776 1784418560 1895944720 3033511552 3791889440 6067023104 7583778880 15167557760 30335115520