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136440370 = 251123199271
BaseRepresentation
bin10000010000111…
…10101000110010
3100111201220000001
420020132220302
5234412042440
621312220214
73244503223
oct1010365062
9314656001
10136440370
1170020740
123983a66a
1322362061
141419924a
15bea1b9a
hex821ea32

136440370 has 64 divisors (see below), whose sum is σ = 282009600. Its totient is φ = 47044800.

The previous prime is 136440361. The next prime is 136440371. The reversal of 136440370 is 73044631.

It is not an unprimeable number, because it can be changed into a prime (136440371) 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 in 31 ways as a sum of consecutive naturals, for example, 503335 + ... + 503605.

It is an arithmetic number, because the mean of its divisors is an integer number (4406400).

Almost surely, 2136440370 is an apocalyptic number.

136440370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136440370 is an abundant number, since it is smaller than the sum of its proper divisors (145569230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136440370 is a wasteful number, since it uses less digits than its factorization.

136440370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 136440370 is about 11680.7692383678. The cubic root of 136440370 is about 514.8107766202.

The spelling of 136440370 in words is "one hundred thirty-six million, four hundred forty thousand, three hundred seventy".

Divisors: 1 2 5 10 11 22 23 46 55 110 115 199 230 253 271 398 506 542 995 1265 1355 1990 2189 2530 2710 2981 4378 4577 5962 6233 9154 10945 12466 14905 21890 22885 29810 31165 45770 50347 53929 62330 68563 100694 107858 137126 251735 269645 342815 503470 539290 593219 685630 1186438 1240367 2480734 2966095 5932190 6201835 12403670 13644037 27288074 68220185 136440370