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23131423302 = 23131223242483
BaseRepresentation
bin10101100010101111…
…011000001001000110
32012201001212001110120
4111202233120021012
5334333121021202
614343150402410
71446134565621
oct254257301106
965631761416
1023131423302
1198a00a3769
124596800406
132248385730
14119613cdb8
15905b200bc
hex562bd8246

23131423302 has 32 divisors (see below), whose sum is σ = 49862469888. Its totient is φ = 7111512096.

The previous prime is 23131423291. The next prime is 23131423309. The reversal of 23131423302 is 20332413132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131423309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25848 + ... + 216635.

It is an arithmetic number, because the mean of its divisors is an integer number (1558202184).

Almost surely, 223131423302 is an apocalyptic number.

23131423302 is an abundant number, since it is smaller than the sum of its proper divisors (26731046586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23131423302 is a wasteful number, since it uses less digits than its factorization.

23131423302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243724.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 23131423302 its reverse (20332413132), we get a palindrome (43463836434).

The spelling of 23131423302 in words is "twenty-three billion, one hundred thirty-one million, four hundred twenty-three thousand, three hundred two".

Divisors: 1 2 3 6 13 26 39 78 1223 2446 3669 7338 15899 31798 47697 95394 242483 484966 727449 1454898 3152279 6304558 9456837 18913674 296556709 593113418 889670127 1779340254 3855237217 7710474434 11565711651 23131423302