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252800997 = 3523316103
BaseRepresentation
bin11110001000101…
…10111111100101
3122121200121202220
433010112333211
51004204112442
641030222553
76156526101
oct1704267745
9577617686
10252800997
1111a777149
12707b4a59
13404b35b7
1425808901
15172d8eec
hexf116fe5

252800997 has 8 divisors (see below), whose sum is σ = 337153344. Its totient is φ = 168491328.

The previous prime is 252800987. The next prime is 252801007. The reversal of 252800997 is 799008252.

It is an interprime number because it is at equal distance from previous prime (252800987) and next prime (252801007).

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

It is not a de Polignac number, because 252800997 - 219 = 252276709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252800987) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7648 + ... + 23750.

It is an arithmetic number, because the mean of its divisors is an integer number (42144168).

Almost surely, 2252800997 is an apocalyptic number.

It is an amenable number.

252800997 is a deficient number, since it is larger than the sum of its proper divisors (84352347).

252800997 is a wasteful number, since it uses less digits than its factorization.

252800997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21339.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 252800997 is about 15899.7168842719. The cubic root of 252800997 is about 632.3044827836.

The spelling of 252800997 in words is "two hundred fifty-two million, eight hundred thousand, nine hundred ninety-seven".

Divisors: 1 3 5233 15699 16103 48309 84266999 252800997