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203230992 = 24319222841
BaseRepresentation
bin11000001110100…
…00111100010000
3112011102012111210
430013100330100
5404011342432
632055540120
75015302116
oct1407207420
9464365453
10203230992
11a479a4a8
125808a640
1333148b33
141cdc3ab6
1512c968cc
hexc1d0f10

203230992 has 40 divisors (see below), whose sum is σ = 552648160. Its totient is φ = 64177920.

The previous prime is 203230969. The next prime is 203230997. The reversal of 203230992 is 299032302.

It is a happy number.

It is a super-2 number, since 2×2032309922 = 82605672218608128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (203230997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110509 + ... + 112332.

It is an arithmetic number, because the mean of its divisors is an integer number (13816204).

Almost surely, 2203230992 is an apocalyptic number.

It is an amenable number.

203230992 is an abundant number, since it is smaller than the sum of its proper divisors (349417168).

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

203230992 is a wasteful number, since it uses less digits than its factorization.

203230992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222871 (or 222865 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 203230992 is about 14255.9107741315. The cubic root of 203230992 is about 587.9358993477.

The spelling of 203230992 in words is "two hundred three million, two hundred thirty thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 16 19 24 38 48 57 76 114 152 228 304 456 912 222841 445682 668523 891364 1337046 1782728 2674092 3565456 4233979 5348184 8467958 10696368 12701937 16935916 25403874 33871832 50807748 67743664 101615496 203230992