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253545031 = 2324594483
BaseRepresentation
bin11110001110011…
…00101001000111
3122200002102101201
433013030221013
51004401420111
641054203331
76166045225
oct1707145107
9580072351
10253545031
11120135153
1270ab3547
13406b415c
142595db15
15173d46c1
hexf1cca47

253545031 has 8 divisors (see below), whose sum is σ = 264735360. Its totient is φ = 242368632.

The previous prime is 253545013. The next prime is 253545043. The reversal of 253545031 is 130545352.

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 253545031 - 211 = 253542983 is a prime.

It is a super-2 number, since 2×2535450312 = 128570165489581922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253545731) 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, 54316 + ... + 58798.

It is an arithmetic number, because the mean of its divisors is an integer number (33091920).

Almost surely, 2253545031 is an apocalyptic number.

253545031 is a deficient number, since it is larger than the sum of its proper divisors (11190329).

253545031 is a wasteful number, since it uses less digits than its factorization.

253545031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6965.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 253545031 is about 15923.0974059697. The cubic root of 253545031 is about 632.9241998070.

The spelling of 253545031 in words is "two hundred fifty-three million, five hundred forty-five thousand, thirty-one".

Divisors: 1 23 2459 4483 56557 103109 11023697 253545031