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23130133109 = 70979740933
BaseRepresentation
bin10101100010101010…
…011101001001110101
32012200222102111122122
4111202222131021311
5334332303224414
614343103005325
71446120613256
oct254252351165
965628374578
1023130133109
11989a3a2396
124596299845
1322480233c5
141195cc4b2d
15905967b8e
hex562a9d275

23130133109 has 8 divisors (see below), whose sum is σ = 23192385720. Its totient is φ = 23067965376.

The previous prime is 23130133099. The next prime is 23130133123. The reversal of 23130133109 is 90133103132.

It can be written as a sum of positive squares in 4 ways, for example, as 102070609 + 23028062500 = 10103^2 + 151750^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23130133109 - 224 = 23113355893 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 (23130133709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 544607 + ... + 585539.

It is an arithmetic number, because the mean of its divisors is an integer number (2899048215).

Almost surely, 223130133109 is an apocalyptic number.

It is an amenable number.

23130133109 is a deficient number, since it is larger than the sum of its proper divisors (62252611).

23130133109 is an equidigital number, since it uses as much as digits as its factorization.

23130133109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42439.

The product of its (nonzero) digits is 1458, while the sum is 26.

The spelling of 23130133109 in words is "twenty-three billion, one hundred thirty million, one hundred thirty-three thousand, one hundred nine".

Divisors: 1 709 797 40933 565073 29021497 32623601 23130133109