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166012053 = 3191328927
BaseRepresentation
bin10011110010100…
…10010010010101
3102120101021201120
421321102102111
5314444341203
624250114153
74054036104
oct1171222225
9376337646
10166012053
1185789349
124771b959
13285170ac
141809603b
15e893b53
hex9e52495

166012053 has 8 divisors (see below), whose sum is σ = 221472768. Its totient is φ = 110613024.

The previous prime is 166012051. The next prime is 166012061. The reversal of 166012053 is 350210661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 166012053 - 21 = 166012051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166012051) 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 7 ways as a sum of consecutive naturals, for example, 8725 + ... + 20202.

It is an arithmetic number, because the mean of its divisors is an integer number (27684096).

Almost surely, 2166012053 is an apocalyptic number.

It is an amenable number.

166012053 is a deficient number, since it is larger than the sum of its proper divisors (55460715).

166012053 is a wasteful number, since it uses less digits than its factorization.

166012053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30843.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 166012053 is about 12884.5664653492. The cubic root of 166012053 is about 549.5997672251.

The spelling of 166012053 in words is "one hundred sixty-six million, twelve thousand, fifty-three".

Divisors: 1 3 1913 5739 28927 86781 55337351 166012053