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166064260 = 2258303213
BaseRepresentation
bin10011110010111…
…11000010000100
3102120110221100011
421321133002010
5320003024020
624251200004
74054344235
oct1171370204
9376427304
10166064260
118581459a
1247746004
1328534a9b
14180ab08c
15e8a435a
hex9e5f084

166064260 has 12 divisors (see below), whose sum is σ = 348734988. Its totient is φ = 66425696.

The previous prime is 166064233. The next prime is 166064263. The reversal of 166064260 is 62460661.

It can be written as a sum of positive squares in 2 ways, for example, as 55562116 + 110502144 = 7454^2 + 10512^2 .

It is not an unprimeable number, because it can be changed into a prime (166064263) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4151587 + ... + 4151626.

It is an arithmetic number, because the mean of its divisors is an integer number (29061249).

Almost surely, 2166064260 is an apocalyptic number.

166064260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166064260 is an abundant number, since it is smaller than the sum of its proper divisors (182670728).

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

166064260 is a wasteful number, since it uses less digits than its factorization.

166064260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8303222 (or 8303220 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 166064260 is about 12886.5922570709. The cubic root of 166064260 is about 549.6573733794.

The spelling of 166064260 in words is "one hundred sixty-six million, sixty-four thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 8303213 16606426 33212852 41516065 83032130 166064260