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2153330561 = 61166321227
BaseRepresentation
bin1000000001011001…
…0011011110000001
312120001212112012202
42000112103132001
513402223034221
6553401202545
7104235002444
oct20026233601
95501775182
102153330561
11a05554138
12501190455
132841711c5
14165dad65b
15c909dd0b
hex80593781

2153330561 has 8 divisors (see below), whose sum is σ = 2190050304. Its totient is φ = 2116656720.

The previous prime is 2153330513. The next prime is 2153330579. The reversal of 2153330561 is 1650333512.

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 2153330561 - 26 = 2153330497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2153330581) 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, 90830 + ... + 112056.

It is an arithmetic number, because the mean of its divisors is an integer number (273756288).

Almost surely, 22153330561 is an apocalyptic number.

It is an amenable number.

2153330561 is a deficient number, since it is larger than the sum of its proper divisors (36719743).

2153330561 is a wasteful number, since it uses less digits than its factorization.

2153330561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22951.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 2153330561 is about 46403.9929424182. The cubic root of 2153330561 is about 1291.3289913245.

The spelling of 2153330561 in words is "two billion, one hundred fifty-three million, three hundred thirty thousand, five hundred sixty-one".

Divisors: 1 61 1663 21227 101443 1294847 35300501 2153330561