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13031244160 = 275111851029
BaseRepresentation
bin11000010001011100…
…10000000110000000
31020122011120210101121
430020232100012000
5203141444303120
65553024442024
7640632514324
oct141056200600
936564523347
1013031244160
115587885680
122638179314
1312c89c107c
148b897d984
155140745aa
hex308b90180

13031244160 has 64 divisors (see below), whose sum is σ = 33984910800. Its totient is φ = 4738631680.

The previous prime is 13031244151. The next prime is 13031244167. The reversal of 13031244160 is 6144213031.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13031244167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 918475 + ... + 932554.

Almost surely, 213031244160 is an apocalyptic number.

13031244160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13031244160 is an abundant number, since it is smaller than the sum of its proper divisors (20953666640).

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

13031244160 is a wasteful number, since it uses less digits than its factorization.

13031244160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851059 (or 1851047 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 13031244160 its reverse (6144213031), we get a palindrome (19175457191).

The spelling of 13031244160 in words is "thirteen billion, thirty-one million, two hundred forty-four thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 64 80 88 110 128 160 176 220 320 352 440 640 704 880 1408 1760 3520 7040 1851029 3702058 7404116 9255145 14808232 18510290 20361319 29616464 37020580 40722638 59232928 74041160 81445276 101806595 118465856 148082320 162890552 203613190 236931712 296164640 325781104 407226380 592329280 651562208 814452760 1184658560 1303124416 1628905520 2606248832 3257811040 6515622080 13031244160