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23130905206 = 211565452603
BaseRepresentation
bin10101100010101101…
…011001101001110110
32012201000212201202211
4111202231121221312
5334333002431311
614343131324034
71446130310263
oct254255315166
965630781684
1023130905206
11989a87a492
1245965b061a
132248233976
14119604626a
15905a6b821
hex562b59a76

23130905206 has 4 divisors (see below), whose sum is σ = 34696357812. Its totient is φ = 11565452602.

The previous prime is 23130905201. The next prime is 23130905263. The reversal of 23130905206 is 60250903132.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23130905201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5782726300 + ... + 5782726303.

It is an arithmetic number, because the mean of its divisors is an integer number (8674089453).

Almost surely, 223130905206 is an apocalyptic number.

23130905206 is a deficient number, since it is larger than the sum of its proper divisors (11565452606).

23130905206 is a wasteful number, since it uses less digits than its factorization.

23130905206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11565452605.

The product of its (nonzero) digits is 9720, while the sum is 31.

The spelling of 23130905206 in words is "twenty-three billion, one hundred thirty million, nine hundred five thousand, two hundred six".

Divisors: 1 2 11565452603 23130905206