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136378630 = 2518237481
BaseRepresentation
bin10000010000011…
…11100100000110
3100111121202022101
420020033210012
5234403104010
621311022314
73244125223
oct1010174406
9314552271
10136378630
116aa89313
123980a99a
132233cc1b
141418094a
15be8d73a
hex820f906

136378630 has 16 divisors (see below), whose sum is σ = 245649024. Its totient is φ = 54514240.

The previous prime is 136378609. The next prime is 136378639. The reversal of 136378630 is 36873631.

It is a self number, because there is not a number n which added to its sum of digits gives 136378630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136378639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14490 + ... + 21970.

It is an arithmetic number, because the mean of its divisors is an integer number (15353064).

Almost surely, 2136378630 is an apocalyptic number.

136378630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136378630 is a deficient number, since it is larger than the sum of its proper divisors (109270394).

136378630 is a wasteful number, since it uses less digits than its factorization.

136378630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9311.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 136378630 is about 11678.1261339309. The cubic root of 136378630 is about 514.7331133579.

The spelling of 136378630 in words is "one hundred thirty-six million, three hundred seventy-eight thousand, six hundred thirty".

Divisors: 1 2 5 10 1823 3646 7481 9115 14962 18230 37405 74810 13637863 27275726 68189315 136378630