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19189528796 = 2213934513541
BaseRepresentation
bin10001110111110010…
…001111100011011100
31211112100111001202202
4101313302033203130
5303300004410141
612452054111032
71246351206044
oct216762174334
954470431682
1019189528796
118157a97009
12387664b478
131a6a7c9889
14d007d2724
15774a2649b
hex477c8f8dc

19189528796 has 12 divisors (see below), whose sum is σ = 33823271160. Its totient is φ = 9525737040.

The previous prime is 19189528769. The next prime is 19189528847. The reversal of 19189528796 is 69782598191.

It is a happy number.

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, 17256215 + ... + 17257326.

It is an arithmetic number, because the mean of its divisors is an integer number (2818605930).

Almost surely, 219189528796 is an apocalyptic number.

It is an amenable number.

19189528796 is a deficient number, since it is larger than the sum of its proper divisors (14633742364).

19189528796 is a wasteful number, since it uses less digits than its factorization.

19189528796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34513684 (or 34513682 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 65.

The spelling of 19189528796 in words is "nineteen billion, one hundred eighty-nine million, five hundred twenty-eight thousand, seven hundred ninety-six".

Divisors: 1 2 4 139 278 556 34513541 69027082 138054164 4797382199 9594764398 19189528796