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656364241 = 13211239287
BaseRepresentation
bin100111000111110…
…101001011010001
31200202001202110201
4213013311023101
52321012123431
6145044055201
722160001241
oct4707651321
91622052421
10656364241
11307556195
12163994501
13a5ca1a10
1463259b21
153c953461
hex271f52d1

656364241 has 8 divisors (see below), whose sum is σ = 710206784. Its totient is φ = 603000720.

The previous prime is 656364239. The next prime is 656364251. The reversal of 656364241 is 142463656.

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 656364241 - 21 = 656364239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 656364241.

It is not an unprimeable number, because it can be changed into a prime (656364211) 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, 116901 + ... + 122386.

It is an arithmetic number, because the mean of its divisors is an integer number (88775848).

Almost surely, 2656364241 is an apocalyptic number.

It is an amenable number.

656364241 is a deficient number, since it is larger than the sum of its proper divisors (53842543).

656364241 is a wasteful number, since it uses less digits than its factorization.

656364241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239511.

The product of its digits is 103680, while the sum is 37.

The square root of 656364241 is about 25619.6065738723. The cubic root of 656364241 is about 869.0570842971.

The spelling of 656364241 in words is "six hundred fifty-six million, three hundred sixty-four thousand, two hundred forty-one".

Divisors: 1 13 211 2743 239287 3110731 50489557 656364241