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136290828 = 223131181479
BaseRepresentation
bin10000001111110…
…10001000001100
3100111110021212110
420013322020030
5234342301303
621305104020
73243311232
oct1007721014
9314407773
10136290828
116aa29353
1239788010
132230bc7b
141415a952
15be72703
hex81fa20c

136290828 has 48 divisors (see below), whose sum is σ = 322882560. Its totient is φ = 44740800.

The previous prime is 136290823. The next prime is 136290839. The reversal of 136290828 is 828092631.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (136290823) 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 15 ways as a sum of consecutive naturals, for example, 284293 + ... + 284771.

It is an arithmetic number, because the mean of its divisors is an integer number (6726720).

Almost surely, 2136290828 is an apocalyptic number.

It is an amenable number.

136290828 is an abundant number, since it is smaller than the sum of its proper divisors (186591732).

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

136290828 is a wasteful number, since it uses less digits than its factorization.

136290828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798 (or 796 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 136290828 is about 11674.3662783039. The cubic root of 136290828 is about 514.6226261082.

The spelling of 136290828 in words is "one hundred thirty-six million, two hundred ninety thousand, eight hundred twenty-eight".

Divisors: 1 2 3 4 6 12 131 181 262 362 393 479 524 543 724 786 958 1086 1437 1572 1916 2172 2874 5748 23711 47422 62749 71133 86699 94844 125498 142266 173398 188247 250996 260097 284532 346796 376494 520194 752988 1040388 11357569 22715138 34072707 45430276 68145414 136290828