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215170134142472 = 2331867621508639
BaseRepresentation
bin110000111011001000110011…
…011010010110111000001000
31001012212001201121101100210222
4300323020303122112320020
5211200321413320024342
62041343443420125212
763215346340045325
oct6073106332267010
91035761647340728
10215170134142472
1162618161282243
12201714b6696808
13930a5c2171882
143b1c40bccdb4c
1519d2107be9ed2
hexc3b233696e08

215170134142472 has 16 divisors (see below), whose sum is σ = 416458324147200. Its totient is φ = 104114581036560.

The previous prime is 215170134142463. The next prime is 215170134142487. The reversal of 215170134142472 is 274241431071512.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 433810754072 + ... + 433810754567.

It is an arithmetic number, because the mean of its divisors is an integer number (26028645259200).

Almost surely, 2215170134142472 is an apocalyptic number.

It is an amenable number.

215170134142472 is a deficient number, since it is larger than the sum of its proper divisors (201288190004728).

215170134142472 is a wasteful number, since it uses less digits than its factorization.

215170134142472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867621508676 (or 867621508672 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 44.

The spelling of 215170134142472 in words is "two hundred fifteen trillion, one hundred seventy billion, one hundred thirty-four million, one hundred forty-two thousand, four hundred seventy-two".

Divisors: 1 2 4 8 31 62 124 248 867621508639 1735243017278 3470486034556 6940972069112 26896266767809 53792533535618 107585067071236 215170134142472