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137683481 = 1319557423
BaseRepresentation
bin10000011010011…
…10001000011001
3100121002001020012
420031032020121
5240221332411
621355011305
73261201365
oct1015161031
9317061205
10137683481
117079a701
123a139b35
13226a8b20
14144002a5
15c14a18b
hex834e219

137683481 has 8 divisors (see below), whose sum is σ = 156078720. Its totient is φ = 120403152.

The previous prime is 137683477. The next prime is 137683487. The reversal of 137683481 is 184386731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 137683481 - 22 = 137683477 is a prime.

It is a super-2 number, since 2×1376834812 = 37913481880554722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (137683487) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 278465 + ... + 278958.

It is an arithmetic number, because the mean of its divisors is an integer number (19509840).

Almost surely, 2137683481 is an apocalyptic number.

It is an amenable number.

137683481 is a deficient number, since it is larger than the sum of its proper divisors (18395239).

137683481 is a wasteful number, since it uses less digits than its factorization.

137683481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557455.

The product of its digits is 96768, while the sum is 41.

The square root of 137683481 is about 11733.8604474401. The cubic root of 137683481 is about 516.3695360349.

The spelling of 137683481 in words is "one hundred thirty-seven million, six hundred eighty-three thousand, four hundred eighty-one".

Divisors: 1 13 19 247 557423 7246499 10591037 137683481