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137020745 = 547976011
BaseRepresentation
bin10000010101011…
…00010101001001
3100112211101010102
420022230111021
5240034130440
621332455145
73252441251
oct1012542511
9315741112
10137020745
1170387794
1239a7a4b5
1322506284
14142aa961
15c068b15
hex82ac549

137020745 has 16 divisors (see below), whose sum is σ = 169682688. Its totient is φ = 106160640.

The previous prime is 137020733. The next prime is 137020753. The reversal of 137020745 is 547020731.

It is a de Polignac number, because none of the positive numbers 2k-137020745 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19790 + ... + 25800.

It is an arithmetic number, because the mean of its divisors is an integer number (10605168).

Almost surely, 2137020745 is an apocalyptic number.

It is an amenable number.

137020745 is a deficient number, since it is larger than the sum of its proper divisors (32661943).

137020745 is an equidigital number, since it uses as much as digits as its factorization.

137020745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6160.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 137020745 is about 11705.5860596554. The cubic root of 137020745 is about 515.5396925048.

The spelling of 137020745 in words is "one hundred thirty-seven million, twenty thousand, seven hundred forty-five".

Divisors: 1 5 47 97 235 485 4559 6011 22795 30055 282517 583067 1412585 2915335 27404149 137020745