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122490808 = 23111391941
BaseRepresentation
bin1110100110100…
…00111110111000
322112111011210121
413103100332320
5222324201213
620053223024
73015104026
oct723207670
9275434717
10122490808
1163163180
1235031a74
131c4b988b
14123a7716
15ab4888d
hex74d0fb8

122490808 has 16 divisors (see below), whose sum is σ = 250549560. Its totient is φ = 55677600.

The previous prime is 122490803. The next prime is 122490811. The reversal of 122490808 is 808094221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122490803) 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, 695883 + ... + 696058.

Almost surely, 2122490808 is an apocalyptic number.

It is an amenable number.

122490808 is an abundant number, since it is smaller than the sum of its proper divisors (128058752).

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

122490808 is a wasteful number, since it uses less digits than its factorization.

122490808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391958 (or 1391954 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 122490808 is about 11067.5565505671. The cubic root of 122490808 is about 496.6317716927.

The spelling of 122490808 in words is "one hundred twenty-two million, four hundred ninety thousand, eight hundred eight".

Divisors: 1 2 4 8 11 22 44 88 1391941 2783882 5567764 11135528 15311351 30622702 61245404 122490808