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137190739 = 7457139
BaseRepresentation
bin10000010110101…
…01110101010011
3100120011000022111
420023111311103
5240110100424
621340250151
73254050000
oct1013256523
9316130274
10137190739
1170493484
1239b40957
132256576a
14143128a7
15c09e194
hex82d5d53

137190739 has 10 divisors (see below), whose sum is σ = 160049140. Its totient is φ = 117590004.

The previous prime is 137190737. The next prime is 137190787. The reversal of 137190739 is 937091731.

It is a happy number.

137190739 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 137190739 - 21 = 137190737 is a prime.

It is a super-2 number, since 2×1371907392 = 37642597734732242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137190733) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 26169 + ... + 30970.

It is an arithmetic number, because the mean of its divisors is an integer number (16004914).

Almost surely, 2137190739 is an apocalyptic number.

137190739 is a deficient number, since it is larger than the sum of its proper divisors (22858401).

137190739 is an frugal number, since it uses more digits than its factorization.

137190739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57167 (or 57146 counting only the distinct ones).

The product of its (nonzero) digits is 35721, while the sum is 40.

The square root of 137190739 is about 11712.8450429432. The cubic root of 137190739 is about 515.7528048493.

The spelling of 137190739 in words is "one hundred thirty-seven million, one hundred ninety thousand, seven hundred thirty-nine".

Divisors: 1 7 49 343 2401 57139 399973 2799811 19598677 137190739