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137457077 = 197991577
BaseRepresentation
bin10000011000101…
…10110110110101
3100120122112122212
420030112312311
5240142111302
621350103205
73256236332
oct1014266665
9316575585
10137457077
117065559a
123a04ab05
1322629a64
1414381989
15c103052
hex8316db5

137457077 has 8 divisors (see below), whose sum is σ = 146524800. Its totient is φ = 128572704.

The previous prime is 137457059. The next prime is 137457083. The reversal of 137457077 is 770754731.

137457077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-137457077 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 (137457097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44288 + ... + 47289.

It is an arithmetic number, because the mean of its divisors is an integer number (18315600).

Almost surely, 2137457077 is an apocalyptic number.

It is an amenable number.

137457077 is a deficient number, since it is larger than the sum of its proper divisors (9067723).

137457077 is an equidigital number, since it uses as much as digits as its factorization.

137457077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91675.

The product of its (nonzero) digits is 144060, while the sum is 41.

The square root of 137457077 is about 11724.2090138312. The cubic root of 137457077 is about 516.0863447939.

The spelling of 137457077 in words is "one hundred thirty-seven million, four hundred fifty-seven thousand, seventy-seven".

Divisors: 1 19 79 1501 91577 1739963 7234583 137457077