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23431345053 = 319221635591
BaseRepresentation
bin10101110100100111…
…011111001110011101
32020110222012122202120
4111310213133032131
5340441411020203
614433023013153
71456436101224
oct256447371635
966428178676
1023431345053
119a34424386
12465b13a1b9
132295556a1c
1411c3cd1cbb
15922115b53
hex5749df39d

23431345053 has 12 divisors (see below), whose sum is σ = 32972642208. Its totient is φ = 14798743560.

The previous prime is 23431344991. The next prime is 23431345087. The reversal of 23431345053 is 35054313432.

It is not a de Polignac number, because 23431345053 - 212 = 23431340957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23431345853) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10816713 + ... + 10818878.

It is an arithmetic number, because the mean of its divisors is an integer number (2747720184).

Almost surely, 223431345053 is an apocalyptic number.

It is an amenable number.

23431345053 is a deficient number, since it is larger than the sum of its proper divisors (9541297155).

23431345053 is a wasteful number, since it uses less digits than its factorization.

23431345053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21635632 (or 21635613 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 33.

Adding to 23431345053 its reverse (35054313432), we get a palindrome (58485658485).

The spelling of 23431345053 in words is "twenty-three billion, four hundred thirty-one million, three hundred forty-five thousand, fifty-three".

Divisors: 1 3 19 57 361 1083 21635591 64906773 411076229 1233228687 7810448351 23431345053