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252285982 = 2139703307
BaseRepresentation
bin11110000100110…
…01010000011110
3122120201110022021
433002121100132
51004041122412
641011210354
76152252434
oct1702312036
9576643267
10252285982
1111a455213
12705a69ba
1340363060
1425712d54
1517236607
hexf09941e

252285982 has 8 divisors (see below), whose sum is σ = 407538936. Its totient is φ = 116439672.

The previous prime is 252285953. The next prime is 252286007. The reversal of 252285982 is 289582252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4851628 + ... + 4851679.

It is an arithmetic number, because the mean of its divisors is an integer number (50942367).

Almost surely, 2252285982 is an apocalyptic number.

252285982 is a deficient number, since it is larger than the sum of its proper divisors (155252954).

252285982 is a wasteful number, since it uses less digits than its factorization.

252285982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9703322.

The product of its digits is 230400, while the sum is 43.

The square root of 252285982 is about 15883.5128986002. The cubic root of 252285982 is about 631.8748066259.

The spelling of 252285982 in words is "two hundred fifty-two million, two hundred eighty-five thousand, nine hundred eighty-two".

Divisors: 1 2 13 26 9703307 19406614 126142991 252285982