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136841085 = 3253040913
BaseRepresentation
bin10000010100000…
…00011101111101
3100112111020200100
420022000131331
5240012403320
621324551313
73251062413
oct1012003575
9315436610
10136841085
1170274807
12399b2539
1322472574
14142612b3
15c030790
hex828077d

136841085 has 12 divisors (see below), whose sum is σ = 237191292. Its totient is φ = 72981888.

The previous prime is 136841077. The next prime is 136841167. The reversal of 136841085 is 580148631.

It can be written as a sum of positive squares in 2 ways, for example, as 44796249 + 92044836 = 6693^2 + 9594^2 .

It is not a de Polignac number, because 136841085 - 23 = 136841077 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1520412 + ... + 1520501.

It is an arithmetic number, because the mean of its divisors is an integer number (19765941).

Almost surely, 2136841085 is an apocalyptic number.

136841085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136841085 is a deficient number, since it is larger than the sum of its proper divisors (100350207).

136841085 is a wasteful number, since it uses less digits than its factorization.

136841085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3040924 (or 3040921 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 136841085 is about 11697.9094286116. The cubic root of 136841085 is about 515.3142707454.

The spelling of 136841085 in words is "one hundred thirty-six million, eight hundred forty-one thousand, eighty-five".

Divisors: 1 3 5 9 15 45 3040913 9122739 15204565 27368217 45613695 136841085