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172316696457 = 3421877915541
BaseRepresentation
bin1010000001111011100…
…0000001111110001001
3121110210001021011012210
42200132320001332021
510310401033241312
6211054452455333
715310111516143
oct2403670017611
9543701234183
10172316696457
1167096312544
122949061a549
1313331bc6aa9
1484a960dc93
154737e18e3c
hex281ee01f89

172316696457 has 16 divisors (see below), whose sum is σ = 230342386880. Its totient is φ = 114584500800.

The previous prime is 172316696449. The next prime is 172316696467. The reversal of 172316696457 is 754696613271.

It is not a de Polignac number, because 172316696457 - 23 = 172316696449 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 172316696397 and 172316696406.

It is not an unprimeable number, because it can be changed into a prime (172316696467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11080107 + ... + 11095647.

It is an arithmetic number, because the mean of its divisors is an integer number (14396399180).

Almost surely, 2172316696457 is an apocalyptic number.

It is an amenable number.

172316696457 is a deficient number, since it is larger than the sum of its proper divisors (58025690423).

172316696457 is a wasteful number, since it uses less digits than its factorization.

172316696457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24744.

The product of its digits is 11430720, while the sum is 57.

The spelling of 172316696457 in words is "one hundred seventy-two billion, three hundred sixteen million, six hundred ninety-six thousand, four hundred fifty-seven".

Divisors: 1 3 421 1263 8779 15541 26337 46623 3695959 6542761 11087877 19628283 136434439 409303317 57438898819 172316696457