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137489953 = 1812712803
BaseRepresentation
bin10000011000111…
…10111000100001
3100120201012202111
420030132320201
5240144134303
621350515321
73256434226
oct1014367041
9316635674
10137489953
1170678267
123a065b41
132263ba03
141438d94d
15c10cb6d
hex831ee21

137489953 has 8 divisors (see below), whose sum is σ = 138809216. Its totient is φ = 136177200.

The previous prime is 137489939. The next prime is 137489977. The reversal of 137489953 is 359984731.

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 137489953 - 213 = 137481761 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 137489897 and 137489906.

It is not an unprimeable number, because it can be changed into a prime (137489903) 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, 47650 + ... + 50452.

It is an arithmetic number, because the mean of its divisors is an integer number (17351152).

Almost surely, 2137489953 is an apocalyptic number.

It is an amenable number.

137489953 is a deficient number, since it is larger than the sum of its proper divisors (1319263).

137489953 is a wasteful number, since it uses less digits than its factorization.

137489953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3255.

The product of its digits is 816480, while the sum is 49.

The square root of 137489953 is about 11725.6109862130. The cubic root of 137489953 is about 516.1274861270.

The spelling of 137489953 in words is "one hundred thirty-seven million, four hundred eighty-nine thousand, nine hundred fifty-three".

Divisors: 1 181 271 2803 49051 507343 759613 137489953