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137047889 = 1137336727
BaseRepresentation
bin10000010101100…
…10111101010001
3100112212202100202
420022302331101
5240041013024
621333224545
73252613346
oct1012627521
9315782322
10137047889
11703a6120
1239a92155
1322515734
14142b67cd
15c071bae
hex82b2f51

137047889 has 8 divisors (see below), whose sum is σ = 153547968. Its totient is φ = 121221360.

The previous prime is 137047879. The next prime is 137047901. The reversal of 137047889 is 988740731.

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 137047889 - 220 = 135999313 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (137047819) 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, 167957 + ... + 168770.

It is an arithmetic number, because the mean of its divisors is an integer number (19193496).

Almost surely, 2137047889 is an apocalyptic number.

It is an amenable number.

137047889 is a deficient number, since it is larger than the sum of its proper divisors (16500079).

137047889 is a wasteful number, since it uses less digits than its factorization.

137047889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336775.

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 137047889 is about 11706.7454486719. The cubic root of 137047889 is about 515.5737333002.

The spelling of 137047889 in words is "one hundred thirty-seven million, forty-seven thousand, eight hundred eighty-nine".

Divisors: 1 11 37 407 336727 3703997 12458899 137047889