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23680012457 = 231278106817
BaseRepresentation
bin10110000011011100…
…000101000010101001
32021010022010021022102
4112003130011002221
5341444040344312
614513424503145
71465545533123
oct260334050251
967108107272
1023680012457
11a051827932
12470a47aab5
132304c209ba
141208d42213
15938d84ec2
hex5837050a9

23680012457 has 8 divisors (see below), whose sum is σ = 24904144896. Its totient is φ = 22472093952.

The previous prime is 23680012451. The next prime is 23680012459. The reversal of 23680012457 is 75421008632.

It is a happy number.

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 23680012457 - 26 = 23680012393 is a prime.

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 23680012457.

It is not an unprimeable number, because it can be changed into a prime (23680012451) 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, 4050488 + ... + 4056329.

It is an arithmetic number, because the mean of its divisors is an integer number (3113018112).

Almost surely, 223680012457 is an apocalyptic number.

It is an amenable number.

23680012457 is a deficient number, since it is larger than the sum of its proper divisors (1224132439).

23680012457 is a wasteful number, since it uses less digits than its factorization.

23680012457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8106967.

The product of its (nonzero) digits is 80640, while the sum is 38.

The spelling of 23680012457 in words is "twenty-three billion, six hundred eighty million, twelve thousand, four hundred fifty-seven".

Divisors: 1 23 127 2921 8106817 186456791 1029565759 23680012457