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232022561 = 11313071571
BaseRepresentation
bin11011101010001…
…10001000100001
3121011120222010012
431311012020201
5433344210221
635005014305
75515105421
oct1565061041
9534528105
10232022561
11109a74a91
1265854395
13390b9a74
1422b5a481
151558265b
hexdd46221

232022561 has 8 divisors (see below), whose sum is σ = 234404064. Its totient is φ = 229647040.

The previous prime is 232022537. The next prime is 232022621. The reversal of 232022561 is 165220232.

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-232022561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (232022501) 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, 146906 + ... + 148476.

It is an arithmetic number, because the mean of its divisors is an integer number (29300508).

Almost surely, 2232022561 is an apocalyptic number.

It is an amenable number.

232022561 is a deficient number, since it is larger than the sum of its proper divisors (2381503).

232022561 is a wasteful number, since it uses less digits than its factorization.

232022561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2991.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 232022561 is about 15232.2867948316. The cubic root of 232022561 is about 614.4832824628.

Adding to 232022561 its reverse (165220232), we get a palindrome (397242793).

The spelling of 232022561 in words is "two hundred thirty-two million, twenty-two thousand, five hundred sixty-one".

Divisors: 1 113 1307 1571 147691 177523 2053297 232022561