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653230285 = 5130646057
BaseRepresentation
bin100110111011111…
…000000011001101
31200112011112111021
4212323320003031
52314211332120
6144452554141
722121236321
oct4673700315
91615145437
10653230285
11305805644
12162922951
13a54453c6
1462a81981
153c534aaa
hex26ef80cd

653230285 has 4 divisors (see below), whose sum is σ = 783876348. Its totient is φ = 522584224.

The previous prime is 653230283. The next prime is 653230289. The reversal of 653230285 is 582032356.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 451902564 + 201327721 = 21258^2 + 14189^2 .

It is a cyclic number.

It is not a de Polignac number, because 653230285 - 21 = 653230283 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 653230285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653230283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65323024 + ... + 65323033.

It is an arithmetic number, because the mean of its divisors is an integer number (195969087).

Almost surely, 2653230285 is an apocalyptic number.

It is an amenable number.

653230285 is a deficient number, since it is larger than the sum of its proper divisors (130646063).

653230285 is a wasteful number, since it uses less digits than its factorization.

653230285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130646062.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 653230285 is about 25558.3701553914. The cubic root of 653230285 is about 867.6717087098.

The spelling of 653230285 in words is "six hundred fifty-three million, two hundred thirty thousand, two hundred eighty-five".

Divisors: 1 5 130646057 653230285