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13132357128 = 233211106915511
BaseRepresentation
bin11000011101011111…
…11101111000001000
31020220012211212022100
430032233331320020
5203343340412003
610011035553400
7643301123322
oct141657757010
936805755270
1013132357128
115629967310
122665bbb860
131313934327
148c8180612
1551cd98ba3
hex30ebfde08

13132357128 has 96 divisors (see below), whose sum is σ = 38838945600. Its totient is φ = 3975523200.

The previous prime is 13132357111. The next prime is 13132357141. The reversal of 13132357128 is 82175323131.

It is a happy number.

13132357128 is a `hidden beast` number, since 1 + 31 + 32 + 3 + 571 + 28 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 13132357092 and 13132357101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 838893 + ... + 854403.

It is an arithmetic number, because the mean of its divisors is an integer number (404572350).

Almost surely, 213132357128 is an apocalyptic number.

13132357128 is a gapful number since it is divisible by the number (18) 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 13132357128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19419472800).

13132357128 is an abundant number, since it is smaller than the sum of its proper divisors (25706588472).

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

13132357128 is a wasteful number, since it uses less digits than its factorization.

13132357128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16603 (or 16596 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The spelling of 13132357128 in words is "thirteen billion, one hundred thirty-two million, three hundred fifty-seven thousand, one hundred twenty-eight".

Divisors: 1 2 3 4 6 8 9 11 12 18 22 24 33 36 44 66 72 88 99 132 198 264 396 792 1069 2138 3207 4276 6414 8552 9621 11759 12828 15511 19242 23518 25656 31022 35277 38484 46533 47036 62044 70554 76968 93066 94072 105831 124088 139599 141108 170621 186132 211662 279198 282216 341242 372264 423324 511863 558396 682484 846648 1023726 1116792 1364968 1535589 2047452 3071178 4094904 6142356 12284712 16581259 33162518 49743777 66325036 99487554 132650072 149231331 182393849 198975108 298462662 364787698 397950216 547181547 596925324 729575396 1094363094 1193850648 1459150792 1641544641 2188726188 3283089282 4377452376 6566178564 13132357128