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137489841 = 3229526781
BaseRepresentation
bin10000011000111…
…10110110110001
3100120201012121100
420030132312301
5240144133331
621350515013
73256434006
oct1014366661
9316635540
10137489841
1170678175
123a065a69
132263b948
141438d8ad
15c10cae6
hex831edb1

137489841 has 12 divisors (see below), whose sum is σ = 205444980. Its totient is φ = 88499040.

The previous prime is 137489827. The next prime is 137489843. The reversal of 137489841 is 148984731.

It is a happy number.

137489841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 113870241 + 23619600 = 10671^2 + 4860^2 .

It is not a de Polignac number, because 137489841 - 25 = 137489809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137489843) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 263130 + ... + 263651.

It is an arithmetic number, because the mean of its divisors is an integer number (17120415).

Almost surely, 2137489841 is an apocalyptic number.

It is an amenable number.

137489841 is a deficient number, since it is larger than the sum of its proper divisors (67955139).

137489841 is a wasteful number, since it uses less digits than its factorization.

137489841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526816 (or 526813 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 137489841 is about 11725.6062103415. The cubic root of 137489841 is about 516.1273459803.

The spelling of 137489841 in words is "one hundred thirty-seven million, four hundred eighty-nine thousand, eight hundred forty-one".

Divisors: 1 3 9 29 87 261 526781 1580343 4741029 15276649 45829947 137489841