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137358079 = 178079887
BaseRepresentation
bin10000010111111…
…10101011111111
3100120110111212021
420023332223333
5240130424304
621344021011
73255344605
oct1013765377
9316414767
10137358079
1170598181
123a001767
13225c3991
1414357875
15c0d3a54
hex82feaff

137358079 has 4 divisors (see below), whose sum is σ = 145437984. Its totient is φ = 129278176.

The previous prime is 137358071. The next prime is 137358083. The reversal of 137358079 is 970853731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 970853731 = 1757109043.

It is a cyclic number.

It is not a de Polignac number, because 137358079 - 23 = 137358071 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 (137358071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4039927 + ... + 4039960.

It is an arithmetic number, because the mean of its divisors is an integer number (36359496).

Almost surely, 2137358079 is an apocalyptic number.

137358079 is a deficient number, since it is larger than the sum of its proper divisors (8079905).

137358079 is an equidigital number, since it uses as much as digits as its factorization.

137358079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8079904.

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 137358079 is about 11719.9863054527. The cubic root of 137358079 is about 515.9624181410.

The spelling of 137358079 in words is "one hundred thirty-seven million, three hundred fifty-eight thousand, seventy-nine".

Divisors: 1 17 8079887 137358079