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136630660 = 2256831533
BaseRepresentation
bin10000010010011…
…01000110000100
3100112002120000211
420021031012010
5234434140120
621320245204
73246225055
oct1011150604
9315076024
10136630660
1170140701
1239910804
13223ca85a
141420872c
15bedd25a
hex824d184

136630660 has 12 divisors (see below), whose sum is σ = 286924428. Its totient is φ = 54652256.

The previous prime is 136630643. The next prime is 136630693. The reversal of 136630660 is 66036631.

It can be written as a sum of positive squares in 2 ways, for example, as 47554816 + 89075844 = 6896^2 + 9438^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3415747 + ... + 3415786.

It is an arithmetic number, because the mean of its divisors is an integer number (23910369).

Almost surely, 2136630660 is an apocalyptic number.

136630660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136630660 is an abundant number, since it is smaller than the sum of its proper divisors (150293768).

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

136630660 is a wasteful number, since it uses less digits than its factorization.

136630660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6831542 (or 6831540 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 136630660 is about 11688.9118398592. The cubic root of 136630660 is about 515.0499967171.

The spelling of 136630660 in words is "one hundred thirty-six million, six hundred thirty thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 6831533 13663066 27326132 34157665 68315330 136630660