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136469420 = 2256823471
BaseRepresentation
bin10000010001001…
…01101110101100
3100111210100211222
420020211232230
5234414010140
621313002512
73244654013
oct1010455654
9314710758
10136469420
117004054a
1239853438
1322372349
14141a5a7a
15beaa5b5
hex8225bac

136469420 has 12 divisors (see below), whose sum is σ = 286585824. Its totient is φ = 54587760.

The previous prime is 136469413. The next prime is 136469423. The reversal of 136469420 is 24964631.

It is not an unprimeable number, because it can be changed into a prime (136469423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3411716 + ... + 3411755.

It is an arithmetic number, because the mean of its divisors is an integer number (23882152).

Almost surely, 2136469420 is an apocalyptic number.

136469420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136469420 is an abundant number, since it is smaller than the sum of its proper divisors (150116404).

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

136469420 is a wasteful number, since it uses less digits than its factorization.

136469420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6823480 (or 6823478 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 136469420 is about 11682.0126690566. The cubic root of 136469420 is about 514.8473107530.

The spelling of 136469420 in words is "one hundred thirty-six million, four hundred sixty-nine thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 6823471 13646942 27293884 34117355 68234710 136469420