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53130332231 = 173307111747
BaseRepresentation
bin110001011110110100…
…001000100001000111
312002010202002112011122
4301132310020201013
51332302331112411
640224023224155
73560422241534
oct613664104107
9162122075148
1053130332231
1120594761a89
12a3692a805b
135019458012
142800381d8b
1515ae5d09db
hexc5ed08847

53130332231 has 4 divisors (see below), whose sum is σ = 53437444152. Its totient is φ = 52823220312.

The previous prime is 53130332219. The next prime is 53130332251. The reversal of 53130332231 is 13223303135.

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 53130332231 - 218 = 53130070087 is a prime.

It is a super-2 number, since 2×531303322312 (a number of 22 digits) contains 22 as substring.

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 53130332231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53130332251) 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, 153555701 + ... + 153556046.

It is an arithmetic number, because the mean of its divisors is an integer number (13359361038).

Almost surely, 253130332231 is an apocalyptic number.

53130332231 is a deficient number, since it is larger than the sum of its proper divisors (307111921).

53130332231 is a wasteful number, since it uses less digits than its factorization.

53130332231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307111920.

The product of its (nonzero) digits is 4860, while the sum is 26.

Adding to 53130332231 its reverse (13223303135), we get a palindrome (66353635366).

The spelling of 53130332231 in words is "fifty-three billion, one hundred thirty million, three hundred thirty-two thousand, two hundred thirty-one".

Divisors: 1 173 307111747 53130332231