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136816460 = 22511621893
BaseRepresentation
bin10000010011110…
…10011101001100
3100112102222220022
420021322131030
5240011111320
621324241312
73250630544
oct1011723514
9315388808
10136816460
1170258260
12399a0238
13224642b1
1414256324
15c028325
hex827a74c

136816460 has 24 divisors (see below), whose sum is σ = 313434576. Its totient is φ = 49751360.

The previous prime is 136816451. The next prime is 136816481. The reversal of 136816460 is 64618631.

It is a self number, because there is not a number n which added to its sum of digits gives 136816460.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 310727 + ... + 311166.

It is an arithmetic number, because the mean of its divisors is an integer number (13059774).

Almost surely, 2136816460 is an apocalyptic number.

136816460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136816460 is an abundant number, since it is smaller than the sum of its proper divisors (176618116).

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

136816460 is a wasteful number, since it uses less digits than its factorization.

136816460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621913 (or 621911 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 136816460 is about 11696.8568427591. The cubic root of 136816460 is about 515.2833580626.

The spelling of 136816460 in words is "one hundred thirty-six million, eight hundred sixteen thousand, four hundred sixty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 621893 1243786 2487572 3109465 6218930 6840823 12437860 13681646 27363292 34204115 68408230 136816460