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242831995 = 573178329
BaseRepresentation
bin11100111100101…
…01001001111011
3121220221010212121
432132111021323
5444131110440
640032422111
76006016000
oct1636251173
9556833777
10242831995
111150882aa
12693a7937
133b402b93
14243718a7
15164ba34a
hexe79527b

242831995 has 32 divisors (see below), whose sum is σ = 359856000. Its totient is φ = 156699648.

The previous prime is 242831987. The next prime is 242832013. The reversal of 242831995 is 599138242.

It is not a de Polignac number, because 242831995 - 23 = 242831987 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24991 + ... + 33319.

It is an arithmetic number, because the mean of its divisors is an integer number (11245500).

Almost surely, 2242831995 is an apocalyptic number.

242831995 is a deficient number, since it is larger than the sum of its proper divisors (117024005).

242831995 is an equidigital number, since it uses as much as digits as its factorization.

242831995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8372 (or 8358 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The square root of 242831995 is about 15583.0675734914. The cubic root of 242831995 is about 623.8813012155.

The spelling of 242831995 in words is "two hundred forty-two million, eight hundred thirty-one thousand, nine hundred ninety-five".

Divisors: 1 5 7 17 35 49 85 119 245 343 595 833 1715 4165 5831 8329 29155 41645 58303 141593 291515 408121 707965 991151 2040605 2856847 4955755 6938057 14284235 34690285 48566399 242831995