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128757013138713 = 32325111299657973
BaseRepresentation
bin11101010001101010010100…
…000001111100110100011001
3121212220001100121221100212210
4131101222110001330310121
5113334023330330414323
61133502053311425333
736056246546543301
oct3521522401746431
9555801317840783
10128757013138713
11380315a7256aa3
1212535b7b225249
1356ac971183aab
1423b1c30920601
15ed43eaa7a293
hex751a9407cd19

128757013138713 has 32 divisors (see below), whose sum is σ = 179870089190400. Its totient is φ = 81771444216000.

The previous prime is 128757013138711. The next prime is 128757013138783. The reversal of 128757013138713 is 317831310757821.

It is not a de Polignac number, because 128757013138713 - 21 = 128757013138711 is a prime.

It is a super-3 number, since 3×1287570131387133 (a number of 43 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (128757013138711) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 195358395 + ... + 196016367.

It is an arithmetic number, because the mean of its divisors is an integer number (5620940287200).

Almost surely, 2128757013138713 is an apocalyptic number.

It is an amenable number.

128757013138713 is a deficient number, since it is larger than the sum of its proper divisors (51113076051687).

128757013138713 is a wasteful number, since it uses less digits than its factorization.

128757013138713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669549.

The product of its (nonzero) digits is 5927040, while the sum is 57.

The spelling of 128757013138713 in words is "one hundred twenty-eight trillion, seven hundred fifty-seven billion, thirteen million, one hundred thirty-eight thousand, seven hundred thirteen".

Divisors: 1 3 23 69 251 753 5773 11299 17319 33897 259877 657973 779631 1973919 2836049 8508147 15133379 45400137 65229127 165151223 195687381 495453669 3798478129 7434436927 11395434387 22303310781 170992049321 512976147963 1866043668677 5598131006031 42919004379571 128757013138713