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23131023302 = 23119929421
BaseRepresentation
bin10101100010101101…
…110110011111000110
32012201001002201202202
4111202231312133012
5334333020221202
614343134034502
71446131311502
oct254255663706
965631081682
1023131023302
11989a950192
124596648a32
13224827564a
141196077302
15905a91802
hex562b767c6

23131023302 has 24 divisors (see below), whose sum is σ = 36000482112. Its totient is φ = 11135005200.

The previous prime is 23131023281. The next prime is 23131023319. The reversal of 23131023302 is 20332013132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2450552 + ... + 2459972.

It is an arithmetic number, because the mean of its divisors is an integer number (1500020088).

Almost surely, 223131023302 is an apocalyptic number.

23131023302 is a deficient number, since it is larger than the sum of its proper divisors (12869458810).

23131023302 is an equidigital number, since it uses as much as digits as its factorization.

23131023302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9852 (or 9653 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 23131023302 its reverse (20332013132), we get a palindrome (43463036434).

The spelling of 23131023302 in words is "twenty-three billion, one hundred thirty-one million, twenty-three thousand, three hundred two".

Divisors: 1 2 31 62 199 398 6169 9421 12338 18842 39601 79202 292051 584102 1227631 1874779 2455262 3749558 58118149 116236298 373081021 746162042 11565511651 23131023302