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215503430148 = 223311631715737
BaseRepresentation
bin1100100010110100000…
…0010110001000000100
3202121020210201112112000
43020231000112020010
512012322334231043
6243000110225300
721366242634546
oct3105500261004
9677223645460
10215503430148
1183438082796
12359237b5230
1317425251696
14a605111696
15591457d2d3
hex322d016204

215503430148 has 48 divisors (see below), whose sum is σ = 559193328960. Its totient is φ = 71772668352.

The previous prime is 215503430123. The next prime is 215503430167. The reversal of 215503430148 is 841034305512.

215503430148 is a `hidden beast` number, since 2 + 1 + 5 + 503 + 4 + 3 + 0 + 148 = 666.

215503430148 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 732265 + ... + 983472.

It is an arithmetic number, because the mean of its divisors is an integer number (11649861020).

Almost surely, 2215503430148 is an apocalyptic number.

It is an amenable number.

215503430148 is an abundant number, since it is smaller than the sum of its proper divisors (343689898812).

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

215503430148 is a wasteful number, since it uses less digits than its factorization.

215503430148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716913 (or 1716905 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 215503430148 in words is "two hundred fifteen billion, five hundred three million, four hundred thirty thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 1163 2326 3489 4652 6978 10467 13956 20934 31401 41868 62802 125604 1715737 3431474 5147211 6862948 10294422 15441633 20588844 30883266 46324899 61766532 92649798 185299596 1995402131 3990804262 5986206393 7981608524 11972412786 17958619179 23944825572 35917238358 53875857537 71834476716 107751715074 215503430148