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136906353 = 3215211817
BaseRepresentation
bin10000010100100…
…00011001110001
3100112121120012200
420022100121301
5240022000403
621330213413
73251453613
oct1012203161
9315546180
10136906353
1170309851
1239a24269
132249619c
141427adb3
15c044ca3
hex8290671

136906353 has 6 divisors (see below), whose sum is σ = 197753634. Its totient is φ = 91270896.

The previous prime is 136906351. The next prime is 136906369. The reversal of 136906353 is 353609631.

136906353 is a `hidden beast` number, since 13 + 6 + 9 + 0 + 635 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 77739489 + 59166864 = 8817^2 + 7692^2 .

It is not a de Polignac number, because 136906353 - 21 = 136906351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136906351) 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, 7605900 + ... + 7605917.

It is an arithmetic number, because the mean of its divisors is an integer number (32958939).

Almost surely, 2136906353 is an apocalyptic number.

It is an amenable number.

136906353 is a deficient number, since it is larger than the sum of its proper divisors (60847281).

136906353 is a wasteful number, since it uses less digits than its factorization.

136906353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15211823 (or 15211820 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 36.

The square root of 136906353 is about 11700.6988252839. The cubic root of 136906353 is about 515.3961861680.

The spelling of 136906353 in words is "one hundred thirty-six million, nine hundred six thousand, three hundred fifty-three".

Divisors: 1 3 9 15211817 45635451 136906353