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19738832058 = 23311314397257
BaseRepresentation
bin10010011000100001…
…101010110010111010
31212221122002120012000
4102120201222302322
5310411120111213
613022355401430
71266101206221
oct223041526272
955848076160
1019738832058
11840a068750
1239aa5b3276
131b27554baa
14d5373dcb8
157a7d7cc73
hex49886acba

19738832058 has 256 divisors, whose sum is σ = 51263815680. Its totient is φ = 5573836800.

The previous prime is 19738832041. The next prime is 19738832117. The reversal of 19738832058 is 85023883791.

19738832058 is a `hidden beast` number, since 197 + 3 + 88 + 320 + 58 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 19738831995 and 19738832013.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 76804666 + ... + 76804922.

It is an arithmetic number, because the mean of its divisors is an integer number (200249280).

Almost surely, 219738832058 is an apocalyptic number.

19738832058 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 19738832058, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25631907840).

19738832058 is an abundant number, since it is smaller than the sum of its proper divisors (31524983622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19738832058 is a wasteful number, since it uses less digits than its factorization.

19738832058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 19738832058 in words is "nineteen billion, seven hundred thirty-eight million, eight hundred thirty-two thousand, fifty-eight".