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13115011352 = 2317435938011
BaseRepresentation
bin11000011011011011…
…10011000100011000
31020212000012121101012
430031231303010120
5203324420330402
610005220113052
7643000520462
oct141555630430
936760177335
1013115011352
11562009a163
122660235788
131310170061
148c5b47132
1551b5be452
hex30db73118

13115011352 has 64 divisors (see below), whose sum is σ = 27094953600. Its totient is φ = 5925911040.

The previous prime is 13115011331. The next prime is 13115011361. The reversal of 13115011352 is 25311051131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326027 + ... + 364037.

It is an arithmetic number, because the mean of its divisors is an integer number (423358650).

Almost surely, 213115011352 is an apocalyptic number.

It is an amenable number.

13115011352 is an abundant number, since it is smaller than the sum of its proper divisors (13979942248).

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

13115011352 is a wasteful number, since it uses less digits than its factorization.

13115011352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38136 (or 38132 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 23.

Adding to 13115011352 its reverse (25311051131), we get a palindrome (38426062483).

The spelling of 13115011352 in words is "thirteen billion, one hundred fifteen million, eleven thousand, three hundred fifty-two".

Divisors: 1 2 4 8 17 34 43 59 68 86 118 136 172 236 344 472 731 1003 1462 2006 2537 2924 4012 5074 5848 8024 10148 20296 38011 43129 76022 86258 152044 172516 304088 345032 646187 1292374 1634473 2242649 2584748 3268946 4485298 5169496 6537892 8970596 13075784 17941192 27786041 38125033 55572082 76250066 96433907 111144164 152500132 192867814 222288328 305000264 385735628 771471256 1639376419 3278752838 6557505676 13115011352