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137230189 = 7916310657
BaseRepresentation
bin10000010110111…
…11011101101101
3100120020000102121
420023133131231
5240112331224
621341152541
73254303005
oct1013373555
9316200377
10137230189
1170510088
1239b5b751
132257a6c5
1414323005
15c0aabe4
hex82df76d

137230189 has 8 divisors (see below), whose sum is σ = 139832960. Its totient is φ = 134649216.

The previous prime is 137230169. The next prime is 137230193. The reversal of 137230189 is 981032731.

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 137230189 - 211 = 137228141 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 (137230109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7549 + ... + 18205.

It is an arithmetic number, because the mean of its divisors is an integer number (17479120).

Almost surely, 2137230189 is an apocalyptic number.

It is an amenable number.

137230189 is a deficient number, since it is larger than the sum of its proper divisors (2602771).

137230189 is a wasteful number, since it uses less digits than its factorization.

137230189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10899.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 137230189 is about 11714.5289704708. The cubic root of 137230189 is about 515.8022360242.

The spelling of 137230189 in words is "one hundred thirty-seven million, two hundred thirty thousand, one hundred eighty-nine".

Divisors: 1 79 163 10657 12877 841903 1737091 137230189