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550823980 = 22574391499
BaseRepresentation
bin100000110101001…
…110100000101100
31102101110202110011
4200311032200230
52112002331410
6130354023004
716435632550
oct4065164054
91371422404
10550823980
11262a20233
12134577a64
138a16b565
1453225860
153355718a
hex20d4e82c

550823980 has 48 divisors (see below), whose sum is σ = 1352736000. Its totient is φ = 184459968.

The previous prime is 550823969. The next prime is 550823993. The reversal of 550823980 is 89328055.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39730 + ... + 51769.

It is an arithmetic number, because the mean of its divisors is an integer number (28182000).

Almost surely, 2550823980 is an apocalyptic number.

It is an amenable number.

550823980 is an abundant number, since it is smaller than the sum of its proper divisors (801912020).

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

550823980 is a wasteful number, since it uses less digits than its factorization.

550823980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91558 (or 91556 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 550823980 is about 23469.6395370700. The cubic root of 550823980 is about 819.7302205922.

The spelling of 550823980 in words is "five hundred fifty million, eight hundred twenty-three thousand, nine hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 35 43 70 86 140 172 215 301 430 602 860 1204 1505 3010 6020 91499 182998 365996 457495 640493 914990 1280986 1829980 2561972 3202465 3934457 6404930 7868914 12809860 15737828 19672285 27541199 39344570 55082398 78689140 110164796 137705995 275411990 550823980