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168134057 = 7131847627
BaseRepresentation
bin10100000010110…
…00010110101001
3102201101002120022
422001120112221
5321020242212
624403410225
74111054520
oct1201302651
9381332508
10168134057
11869a8673
1248383975
1328aaac10
14184894b7
15eb62772
hexa0585a9

168134057 has 8 divisors (see below), whose sum is σ = 206934336. Its totient is φ = 133029072.

The previous prime is 168134047. The next prime is 168134069. The reversal of 168134057 is 750431861.

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

It is a cyclic number.

It is not a de Polignac number, because 168134057 - 220 = 167085481 is a prime.

It is a super-2 number, since 2×1681340572 = 56538122246558498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (168134027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 923723 + ... + 923904.

It is an arithmetic number, because the mean of its divisors is an integer number (25866792).

Almost surely, 2168134057 is an apocalyptic number.

It is an amenable number.

168134057 is a deficient number, since it is larger than the sum of its proper divisors (38800279).

168134057 is a wasteful number, since it uses less digits than its factorization.

168134057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1847647.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 168134057 is about 12966.6517266409. The cubic root of 168134057 is about 551.9315633580.

The spelling of 168134057 in words is "one hundred sixty-eight million, one hundred thirty-four thousand, fifty-seven".

Divisors: 1 7 13 91 1847627 12933389 24019151 168134057