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137810109 = 3172702159
BaseRepresentation
bin10000011011011…
…01000010111101
3100121022110221010
420031231002331
5240234410414
621401425433
73262236513
oct1015550275
9317273833
10137810109
1170876858
123a19b279
1322721658
14144344b3
15c172959
hex836d0bd

137810109 has 8 divisors (see below), whose sum is σ = 194555520. Its totient is φ = 86469056.

The previous prime is 137810083. The next prime is 137810137. The reversal of 137810109 is 901018731.

137810109 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 137810109 - 27 = 137809981 is a prime.

It is a super-2 number, since 2×1378101092 = 37983252285183762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137810609) 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, 1351029 + ... + 1351130.

It is an arithmetic number, because the mean of its divisors is an integer number (24319440).

Almost surely, 2137810109 is an apocalyptic number.

It is an amenable number.

137810109 is a deficient number, since it is larger than the sum of its proper divisors (56745411).

137810109 is a wasteful number, since it uses less digits than its factorization.

137810109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2702179.

The product of its (nonzero) digits is 1512, while the sum is 30.

The square root of 137810109 is about 11739.2550445077. The cubic root of 137810109 is about 516.5277898449.

The spelling of 137810109 in words is "one hundred thirty-seven million, eight hundred ten thousand, one hundred nine".

Divisors: 1 3 17 51 2702159 8106477 45936703 137810109