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138026695 = 5103268013
BaseRepresentation
bin10000011101000…
…01111011000111
3100121201111000211
420032201323013
5240313323240
621410220251
73264131122
oct1016417307
9317644024
10138026695
1170a04554
123a284687
1322799101
141448d3b9
15c1b6bea
hex83a1ec7

138026695 has 8 divisors (see below), whose sum is σ = 167240736. Its totient is φ = 109348896.

The previous prime is 138026653. The next prime is 138026699. The reversal of 138026695 is 596620831.

138026695 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 not a de Polignac number, because 138026695 - 211 = 138024647 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 (138026699) 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, 133492 + ... + 134521.

It is an arithmetic number, because the mean of its divisors is an integer number (20905092).

Almost surely, 2138026695 is an apocalyptic number.

138026695 is a deficient number, since it is larger than the sum of its proper divisors (29214041).

138026695 is a wasteful number, since it uses less digits than its factorization.

138026695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268121.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 138026695 is about 11748.4762841826. The cubic root of 138026695 is about 516.7982444399.

The spelling of 138026695 in words is "one hundred thirty-eight million, twenty-six thousand, six hundred ninety-five".

Divisors: 1 5 103 515 268013 1340065 27605339 138026695