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19886925062 = 297102509923
BaseRepresentation
bin10010100001010110…
…100110010100000110
31220022221202110121002
4102201112212110012
5311212023100222
613045205453302
71302550034234
oct224126462406
956287673532
1019886925062
118485718164
123a30111232
131b4c136aa4
14d6928d954
157b5d82392
hex4a15a6506

19886925062 has 8 divisors (see below), whose sum is σ = 30137917656. Its totient is φ = 9840952512.

The previous prime is 19886925043. The next prime is 19886925077. The reversal of 19886925062 is 26052968891.

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

It is a junction number, because it is equal to n+sod(n) for n = 19886924989 and 19886925007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51254768 + ... + 51255155.

It is an arithmetic number, because the mean of its divisors is an integer number (3767239707).

Almost surely, 219886925062 is an apocalyptic number.

19886925062 is a deficient number, since it is larger than the sum of its proper divisors (10250992594).

19886925062 is a wasteful number, since it uses less digits than its factorization.

19886925062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102510022.

The product of its (nonzero) digits is 3732480, while the sum is 56.

The spelling of 19886925062 in words is "nineteen billion, eight hundred eighty-six million, nine hundred twenty-five thousand, sixty-two".

Divisors: 1 2 97 194 102509923 205019846 9943462531 19886925062