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160139917 = 722877131
BaseRepresentation
bin10011000101110…
…00101010001101
3102011022221200001
421202320222031
5311443434132
623520204301
73653111140
oct1142705215
9364287601
10160139917
1182438543
1245769691
132723c362
14173a8057
15e0d3ce7
hex98b8a8d

160139917 has 4 divisors (see below), whose sum is σ = 183017056. Its totient is φ = 137262780.

The previous prime is 160139909. The next prime is 160139953. The reversal of 160139917 is 719931061.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 160139917 - 23 = 160139909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160139957) 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, 11438559 + ... + 11438572.

It is an arithmetic number, because the mean of its divisors is an integer number (45754264).

Almost surely, 2160139917 is an apocalyptic number.

It is an amenable number.

160139917 is a deficient number, since it is larger than the sum of its proper divisors (22877139).

160139917 is an equidigital number, since it uses as much as digits as its factorization.

160139917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22877138.

The product of its (nonzero) digits is 10206, while the sum is 37.

The square root of 160139917 is about 12654.6401371197. The cubic root of 160139917 is about 543.0417243673.

The spelling of 160139917 in words is "one hundred sixty million, one hundred thirty-nine thousand, nine hundred seventeen".

Divisors: 1 7 22877131 160139917