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252130771 = 419376563
BaseRepresentation
bin11110000011100…
…11010111010011
3122120102120101201
433001303113103
51004021141041
641004012031
76151035064
oct1701632723
9576376351
10252130771
1111a359642
1270531017
134030a509
14256b256b
1517205631
hexf0735d3

252130771 has 8 divisors (see below), whose sum is σ = 258595344. Its totient is φ = 245681280.

The previous prime is 252130763. The next prime is 252130789. The reversal of 252130771 is 177031252.

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 252130771 - 23 = 252130763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252130721) 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, 35136 + ... + 41698.

It is an arithmetic number, because the mean of its divisors is an integer number (32324418).

Almost surely, 2252130771 is an apocalyptic number.

252130771 is a deficient number, since it is larger than the sum of its proper divisors (6464573).

252130771 is an equidigital number, since it uses as much as digits as its factorization.

252130771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7541.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 252130771 is about 15878.6262315101. The cubic root of 252130771 is about 631.7451996894.

The spelling of 252130771 in words is "two hundred fifty-two million, one hundred thirty thousand, seven hundred seventy-one".

Divisors: 1 41 937 6563 38417 269083 6149531 252130771