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13375690128 = 243292886737
BaseRepresentation
bin11000111010100000…
…01101010110010000
31021112011201110102200
430131100031112100
5204343134041003
610051131243200
7652314330063
oct143520152620
937464643380
1013375690128
115744256a69
1227135a9500
131352181258
1490c6028da
155344126a3
hex31d40d590

13375690128 has 30 divisors (see below), whose sum is σ = 37433355414. Its totient is φ = 4458563328.

The previous prime is 13375690109. The next prime is 13375690169. The reversal of 13375690128 is 82109657331.

It can be written as a sum of positive squares in only one way, i.e., 12658950144 + 716739984 = 112512^2 + 26772^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46443225 + ... + 46443512.

Almost surely, 213375690128 is an apocalyptic number.

13375690128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13375690128 is an abundant number, since it is smaller than the sum of its proper divisors (24057665286).

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

13375690128 is a wasteful number, since it uses less digits than its factorization.

13375690128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92886751 (or 92886742 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 13375690128 in words is "thirteen billion, three hundred seventy-five million, six hundred ninety thousand, one hundred twenty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 92886737 185773474 278660211 371546948 557320422 743093896 835980633 1114640844 1486187792 1671961266 2229281688 3343922532 4458563376 6687845064 13375690128