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19425102048 = 25331119971109
BaseRepresentation
bin10010000101110100…
…111000100011100000
31212010202202102112000
4102011310320203200
5304240311231143
612531311204000
71255241433402
oct220564704340
955122672460
1019425102048
118268a66750
123921516600
131aa755a831
14d23bd4b72
1578a55abd3
hex485d388e0

19425102048 has 384 divisors, whose sum is σ = 65790144000. Its totient is φ = 5514117120.

The previous prime is 19425102031. The next prime is 19425102049. The reversal of 19425102048 is 84020152491.

19425102048 is a `hidden beast` number, since 19 + 425 + 10 + 204 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19425102049) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17515318 + ... + 17516426.

It is an arithmetic number, because the mean of its divisors is an integer number (171328500).

Almost surely, 219425102048 is an apocalyptic number.

19425102048 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19425102048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32895072000).

19425102048 is an abundant number, since it is smaller than the sum of its proper divisors (46365041952).

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

19425102048 is a wasteful number, since it uses less digits than its factorization.

19425102048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255 (or 1241 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The spelling of 19425102048 in words is "nineteen billion, four hundred twenty-five million, one hundred two thousand, forty-eight".