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19392692613 = 372131923079
BaseRepresentation
bin10010000011111001…
…010000000110000101
31212001111202212010120
4102003321100012011
5304204012130423
612524152412153
71254366111300
oct220371200605
955044685116
1019392692613
11825173aa98
1239126a7059
131aa0920c58
14d1d799b37
157877a7ee3
hex483e50185

19392692613 has 12 divisors (see below), whose sum is σ = 30078462240. Its totient is φ = 11081538552.

The previous prime is 19392692611. The next prime is 19392692639. The reversal of 19392692613 is 31629629391.

It is not a de Polignac number, because 19392692613 - 21 = 19392692611 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19392692611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65961393 + ... + 65961686.

It is an arithmetic number, because the mean of its divisors is an integer number (2506538520).

Almost surely, 219392692613 is an apocalyptic number.

It is an amenable number.

19392692613 is a deficient number, since it is larger than the sum of its proper divisors (10685769627).

19392692613 is a wasteful number, since it uses less digits than its factorization.

19392692613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131923096 (or 131923089 counting only the distinct ones).

The product of its digits is 944784, while the sum is 51.

The spelling of 19392692613 in words is "nineteen billion, three hundred ninety-two million, six hundred ninety-two thousand, six hundred thirteen".

Divisors: 1 3 7 21 49 147 131923079 395769237 923461553 2770384659 6464230871 19392692613