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83020424 = 23194711621
BaseRepresentation
bin1001111001011…
…00101010001000
312210012212121112
410330230222020
5132223123144
612123225452
72025443024
oct474545210
9183185545
1083020424
1142954523
1223978288
131427a116
14b051384
15744d99e
hex4f2ca88

83020424 has 32 divisors (see below), whose sum is σ = 167356800. Its totient is φ = 38485440.

The previous prime is 83020411. The next prime is 83020439. The reversal of 83020424 is 42402038.

It is a super-2 number, since 2×830204242 = 13784781602279552, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 83020424.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1334 + ... + 12954.

It is an arithmetic number, because the mean of its divisors is an integer number (5229900).

Almost surely, 283020424 is an apocalyptic number.

It is an amenable number.

83020424 is an abundant number, since it is smaller than the sum of its proper divisors (84336376).

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

83020424 is a wasteful number, since it uses less digits than its factorization.

83020424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11693 (or 11689 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 83020424 is about 9111.5544228194. The cubic root of 83020424 is about 436.2428437016.

The spelling of 83020424 in words is "eighty-three million, twenty thousand, four hundred twenty-four".

Divisors: 1 2 4 8 19 38 47 76 94 152 188 376 893 1786 3572 7144 11621 23242 46484 92968 220799 441598 546187 883196 1092374 1766392 2184748 4369496 10377553 20755106 41510212 83020424