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13001512122 = 2331671441729
BaseRepresentation
bin11000001101111001…
…10101010010111010
31020120002122020201000
430012330311102322
5203111341341442
65550043305430
7640122013104
oct140674652272
936502566630
1013001512122
115572018545
12262a21b276
1312c27b1051
148b4a40574
1551164ed4c
hex306f354ba

13001512122 has 32 divisors (see below), whose sum is σ = 29065276800. Its totient is φ = 4307883264.

The previous prime is 13001512061. The next prime is 13001512133. The reversal of 13001512122 is 22121510031.

13001512122 is a `hidden beast` number, since 1 + 30 + 0 + 1 + 512 + 122 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 13001512095 and 13001512104.

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, 711847 + ... + 729882.

It is an arithmetic number, because the mean of its divisors is an integer number (908289900).

Almost surely, 213001512122 is an apocalyptic number.

13001512122 is an abundant number, since it is smaller than the sum of its proper divisors (16063764678).

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

13001512122 is a wasteful number, since it uses less digits than its factorization.

13001512122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441907 (or 1441901 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The spelling of 13001512122 in words is "thirteen billion, one million, five hundred twelve thousand, one hundred twenty-two".

Divisors: 1 2 3 6 9 18 27 54 167 334 501 1002 1503 3006 4509 9018 1441729 2883458 4325187 8650374 12975561 25951122 38926683 77853366 240768743 481537486 722306229 1444612458 2166918687 4333837374 6500756061 13001512122