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136841031 = 3215204559
BaseRepresentation
bin10000010100000…
…00011101000111
3100112111020121100
420022000131013
5240012403111
621324551143
73251062305
oct1012003507
9315436540
10136841031
1170274768
12399b24b3
1322472532
1414261275
15c030756
hex8280747

136841031 has 6 divisors (see below), whose sum is σ = 197659280. Its totient is φ = 91227348.

The previous prime is 136841009. The next prime is 136841057. The reversal of 136841031 is 130148631.

It is not a de Polignac number, because 136841031 - 25 = 136840999 is a prime.

It is a super-2 number, since 2×1368410312 = 37450935530285922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136840986 and 136841004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136841431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7602271 + ... + 7602288.

Almost surely, 2136841031 is an apocalyptic number.

136841031 is a deficient number, since it is larger than the sum of its proper divisors (60818249).

136841031 is a wasteful number, since it uses less digits than its factorization.

136841031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15204565 (or 15204562 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 136841031 is about 11697.9071205066. The cubic root of 136841031 is about 515.3142029612.

Adding to 136841031 its reverse (130148631), we get a palindrome (266989662).

The spelling of 136841031 in words is "one hundred thirty-six million, eight hundred forty-one thousand, thirty-one".

Divisors: 1 3 9 15204559 45613677 136841031