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136807544 = 2317100943
BaseRepresentation
bin10000010011110…
…00010001111000
3100112102112200002
420021320101320
5240010320134
621324132132
73250562546
oct1011702170
9315375602
10136807544
1170251595
1239997048
1322460213
1414252d96
15c02587e
hex8278478

136807544 has 8 divisors (see below), whose sum is σ = 256514160. Its totient is φ = 68403768.

The previous prime is 136807523. The next prime is 136807549. The reversal of 136807544 is 445708631.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 136807498 and 136807507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136807549) 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 as a sum of consecutive naturals, namely, 8550464 + ... + 8550479.

It is an arithmetic number, because the mean of its divisors is an integer number (32064270).

Almost surely, 2136807544 is an apocalyptic number.

It is an amenable number.

136807544 is a deficient number, since it is larger than the sum of its proper divisors (119706616).

136807544 is a wasteful number, since it uses less digits than its factorization.

136807544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17100949 (or 17100945 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 136807544 is about 11696.4757085201. The cubic root of 136807544 is about 515.2721645599.

The spelling of 136807544 in words is "one hundred thirty-six million, eight hundred seven thousand, five hundred forty-four".

Divisors: 1 2 4 8 17100943 34201886 68403772 136807544