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53261430223 = 139383175757
BaseRepresentation
bin110001100110101000…
…001110110111001111
312002110212202222210211
4301212220032313033
51333034411231343
640245025143251
73563603454451
oct614650166717
9162425688724
1053261430223
1120651763931
12a3a518ab27
13503a6694b1
14281394a2d1
1515bad7979d
hexc66a0edcf

53261430223 has 4 divisors (see below), whose sum is σ = 53644606120. Its totient is φ = 52878254328.

The previous prime is 53261430203. The next prime is 53261430263. The reversal of 53261430223 is 32203416235.

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

It is a cyclic number.

It is not a de Polignac number, because 53261430223 - 217 = 53261299151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53261430203) 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, 191587740 + ... + 191588017.

It is an arithmetic number, because the mean of its divisors is an integer number (13411151530).

Almost surely, 253261430223 is an apocalyptic number.

53261430223 is a deficient number, since it is larger than the sum of its proper divisors (383175897).

53261430223 is a wasteful number, since it uses less digits than its factorization.

53261430223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383175896.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 53261430223 its reverse (32203416235), we get a palindrome (85464846458).

The spelling of 53261430223 in words is "fifty-three billion, two hundred sixty-one million, four hundred thirty thousand, two hundred twenty-three".

Divisors: 1 139 383175757 53261430223