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23680492109 = 76073112987
BaseRepresentation
bin10110000011011101…
…111010001001001101
32021010100000122021022
4112003131322021031
5341444201221414
614513443043525
71465552601411
oct260335721115
967110018238
1023680492109
11a05202523a
12470a6705a5
13230505b111
141209028d41
15938e2c18e
hex58377a24d

23680492109 has 4 divisors (see below), whose sum is σ = 23683612704. Its totient is φ = 23677371516.

The previous prime is 23680492093. The next prime is 23680492163. The reversal of 23680492109 is 90129408632.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23680492109 - 24 = 23680492093 is a prime.

It is a super-2 number, since 2×236804921092 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23680492109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23680492709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1548887 + ... + 1564100.

It is an arithmetic number, because the mean of its divisors is an integer number (5920903176).

Almost surely, 223680492109 is an apocalyptic number.

It is an amenable number.

23680492109 is a deficient number, since it is larger than the sum of its proper divisors (3120595).

23680492109 is an equidigital number, since it uses as much as digits as its factorization.

23680492109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3120594.

The product of its (nonzero) digits is 186624, while the sum is 44.

The spelling of 23680492109 in words is "twenty-three billion, six hundred eighty million, four hundred ninety-two thousand, one hundred nine".

Divisors: 1 7607 3112987 23680492109