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231525201 = 3431794769
BaseRepresentation
bin11011100110011…
…00101101010001
3121010122200212110
431303030231101
5433232301301
634550215533
75510634405
oct1563145521
9533580773
10231525201
11109765346
12656545a9
1338c7457b
1422a6b105
15154d50d6
hexdcccb51

231525201 has 8 divisors (see below), whose sum is σ = 315879520. Its totient is φ = 150760512.

The previous prime is 231525197. The next prime is 231525251. The reversal of 231525201 is 102525132.

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

It is not a de Polignac number, because 231525201 - 22 = 231525197 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (231525251) 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, 897256 + ... + 897513.

It is an arithmetic number, because the mean of its divisors is an integer number (39484940).

Almost surely, 2231525201 is an apocalyptic number.

It is an amenable number.

231525201 is a deficient number, since it is larger than the sum of its proper divisors (84354319).

231525201 is a wasteful number, since it uses less digits than its factorization.

231525201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1794815.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 231525201 is about 15215.9521884107. The cubic root of 231525201 is about 614.0439027201.

The spelling of 231525201 in words is "two hundred thirty-one million, five hundred twenty-five thousand, two hundred one".

Divisors: 1 3 43 129 1794769 5384307 77175067 231525201