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136557454 = 211237101151
BaseRepresentation
bin10000010001110…
…11001110001110
3100111221211121111
420020323032032
5234424314304
621314522234
73245501455
oct1010731616
9314854544
10136557454
11700a0700
123989637a
13223a3437
14141c9b9c
15bec6704
hex823b38e

136557454 has 48 divisors (see below), whose sum is σ = 235071648. Its totient is φ = 59400000.

The previous prime is 136557451. The next prime is 136557461. The reversal of 136557454 is 454755631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136557451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 904279 + ... + 904429.

It is an arithmetic number, because the mean of its divisors is an integer number (4897326).

Almost surely, 2136557454 is an apocalyptic number.

136557454 is a deficient number, since it is larger than the sum of its proper divisors (98514194).

136557454 is a wasteful number, since it uses less digits than its factorization.

136557454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313 (or 302 counting only the distinct ones).

The product of its digits is 252000, while the sum is 40.

The square root of 136557454 is about 11685.7799910832. The cubic root of 136557454 is about 514.9579932432.

The spelling of 136557454 in words is "one hundred thirty-six million, five hundred fifty-seven thousand, four hundred fifty-four".

Divisors: 1 2 11 22 37 74 101 121 151 202 242 302 407 814 1111 1661 2222 3322 3737 4477 5587 7474 8954 11174 12221 15251 18271 24442 30502 36542 41107 61457 82214 122914 167761 335522 452177 564287 676027 904354 1128574 1352054 1845371 3690742 6207157 12414314 68278727 136557454