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166144524 = 223713152147
BaseRepresentation
bin10011110011100…
…10101000001100
3102120122000102220
421321302220030
5320013111044
624253015340
74055130240
oct1171625014
9376560386
10166144524
1185869927
1247784550
1328562490
14180cc420
15e8bd019
hex9e72a0c

166144524 has 48 divisors (see below), whose sum is σ = 477136128. Its totient is φ = 43818048.

The previous prime is 166144513. The next prime is 166144547. The reversal of 166144524 is 425441661.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74982 + ... + 77165.

It is an arithmetic number, because the mean of its divisors is an integer number (9940336).

Almost surely, 2166144524 is an apocalyptic number.

166144524 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

166144524 is an abundant number, since it is smaller than the sum of its proper divisors (310991604).

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

166144524 is a wasteful number, since it uses less digits than its factorization.

166144524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152174 (or 152172 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 166144524 is about 12889.7061254320. The cubic root of 166144524 is about 549.7459145933.

The spelling of 166144524 in words is "one hundred sixty-six million, one hundred forty-four thousand, five hundred twenty-four".

Divisors: 1 2 3 4 6 7 12 13 14 21 26 28 39 42 52 78 84 91 156 182 273 364 546 1092 152147 304294 456441 608588 912882 1065029 1825764 1977911 2130058 3195087 3955822 4260116 5933733 6390174 7911644 11867466 12780348 13845377 23734932 27690754 41536131 55381508 83072262 166144524