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252922551 = 3712043931
BaseRepresentation
bin11110001001101…
…00101010110111
3122121220210111220
433010310222313
51004222010201
641033001423
76160543350
oct1704645267
9577823456
10252922551
1111a84a502
1270853273
1340526a1b
142583ad27
1517310036
hexf134ab7

252922551 has 8 divisors (see below), whose sum is σ = 385405824. Its totient is φ = 144527160.

The previous prime is 252922541. The next prime is 252922613. The reversal of 252922551 is 155229252.

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

It is not a de Polignac number, because 252922551 - 213 = 252914359 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252922541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6021945 + ... + 6021986.

It is an arithmetic number, because the mean of its divisors is an integer number (48175728).

Almost surely, 2252922551 is an apocalyptic number.

252922551 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

252922551 is a deficient number, since it is larger than the sum of its proper divisors (132483273).

252922551 is a wasteful number, since it uses less digits than its factorization.

252922551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12043941.

The product of its digits is 18000, while the sum is 33.

The square root of 252922551 is about 15903.5389457818. The cubic root of 252922551 is about 632.4058099469.

The spelling of 252922551 in words is "two hundred fifty-two million, nine hundred twenty-two thousand, five hundred fifty-one".

Divisors: 1 3 7 21 12043931 36131793 84307517 252922551