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159161889 = 3291939479
BaseRepresentation
bin10010111110010…
…01111000100001
3102002111021001210
421133021320201
5311221140024
623443220333
73641565555
oct1137117041
9362437053
10159161889
118192a757
12453776a9
1326c89143
14171d1865
15de8e129
hex97c9e21

159161889 has 16 divisors (see below), whose sum is σ = 220694400. Its totient is φ = 101907456.

The previous prime is 159161869. The next prime is 159161923. The reversal of 159161889 is 988161951.

159161889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 159161889 - 25 = 159161857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (159161819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12052 + ... + 21530.

It is an arithmetic number, because the mean of its divisors is an integer number (13793400).

Almost surely, 2159161889 is an apocalyptic number.

It is an amenable number.

159161889 is a deficient number, since it is larger than the sum of its proper divisors (61532511).

159161889 is a wasteful number, since it uses less digits than its factorization.

159161889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9704.

The product of its digits is 155520, while the sum is 48.

The square root of 159161889 is about 12615.9378961693. The cubic root of 159161889 is about 541.9339536811.

The spelling of 159161889 in words is "one hundred fifty-nine million, one hundred sixty-one thousand, eight hundred eighty-nine".

Divisors: 1 3 29 87 193 579 5597 9479 16791 28437 274891 824673 1829447 5488341 53053963 159161889