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252445253 = 1312119133
BaseRepresentation
bin11110000110000…
…00001001000101
3122121000112210012
433003000021011
51004111222003
641014440005
76153514664
oct1703001105
9577015705
10252445253
1111a553945
1270663005
13403ba6b8
1425754ddb
15172688d8
hexf0c0245

252445253 has 8 divisors (see below), whose sum is σ = 255605856. Its totient is φ = 249303600.

The previous prime is 252445243. The next prime is 252445283. The reversal of 252445253 is 352544252.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-252445253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252445243) 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, 23075 + ... + 32207.

It is an arithmetic number, because the mean of its divisors is an integer number (31950732).

Almost surely, 2252445253 is an apocalyptic number.

It is an amenable number.

252445253 is a deficient number, since it is larger than the sum of its proper divisors (3160603).

252445253 is a wasteful number, since it uses less digits than its factorization.

252445253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9475.

The product of its digits is 48000, while the sum is 32.

The square root of 252445253 is about 15888.5258284084. The cubic root of 252445253 is about 632.0077485631.

The spelling of 252445253 in words is "two hundred fifty-two million, four hundred forty-five thousand, two hundred fifty-three".

Divisors: 1 131 211 9133 27641 1196423 1927063 252445253