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166230560 = 2551038941
BaseRepresentation
bin10011110100001…
…11101000100000
3102120210101110102
421322013220200
5320023334220
624254521532
74055636126
oct1172075040
9376711412
10166230560
1185918531
12478062a8
13285926a2
1418111916
15e8d8775
hex9e87a20

166230560 has 24 divisors (see below), whose sum is σ = 392720076. Its totient is φ = 66492160.

The previous prime is 166230541. The next prime is 166230577. The reversal of 166230560 is 65032661.

It can be written as a sum of positive squares in 2 ways, for example, as 166203664 + 26896 = 12892^2 + 164^2 .

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, 519311 + ... + 519630.

Almost surely, 2166230560 is an apocalyptic number.

166230560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166230560 is an abundant number, since it is smaller than the sum of its proper divisors (226489516).

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

166230560 is a wasteful number, since it uses less digits than its factorization.

166230560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038956 (or 1038948 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 166230560 is about 12893.0430853232. The cubic root of 166230560 is about 549.8407913839.

The spelling of 166230560 in words is "one hundred sixty-six million, two hundred thirty thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 1038941 2077882 4155764 5194705 8311528 10389410 16623056 20778820 33246112 41557640 83115280 166230560