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252387121 = 7129727799
BaseRepresentation
bin11110000101100…
…01111100110001
3122120220121001011
433002301330301
51004102341441
641013310521
76153153340
oct1702617461
9576817034
10252387121
1111a5141a8
1270635441
134039a0bc
142573bb57
1517256581
hexf0b1f31

252387121 has 8 divisors (see below), whose sum is σ = 288675200. Its totient is φ = 216157248.

The previous prime is 252387097. The next prime is 252387131. The reversal of 252387121 is 121783252.

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

It is a cyclic number.

It is not a de Polignac number, because 252387121 - 217 = 252256049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252387131) 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, 4821 + ... + 22978.

It is an arithmetic number, because the mean of its divisors is an integer number (36084400).

Almost surely, 2252387121 is an apocalyptic number.

It is an amenable number.

252387121 is a deficient number, since it is larger than the sum of its proper divisors (36288079).

252387121 is a wasteful number, since it uses less digits than its factorization.

252387121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29103.

The product of its digits is 6720, while the sum is 31.

The square root of 252387121 is about 15886.6963526090. The cubic root of 252387121 is about 631.9592328361.

The spelling of 252387121 in words is "two hundred fifty-two million, three hundred eighty-seven thousand, one hundred twenty-one".

Divisors: 1 7 1297 9079 27799 194593 36055303 252387121