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19343059680 = 253573176911
BaseRepresentation
bin10010000000111011…
…111010101011100000
31211221001101020112210
4102000323322223200
5304103310402210
612515220522120
71253224203000
oct220073725340
954831336483
1019343059680
11822672003a
1238b9b50340
131a93563959
14d16d5a000
15783251e20
hex480efaae0

19343059680 has 384 divisors, whose sum is σ = 75246796800. Its totient is φ = 4160593920.

The previous prime is 19343059669. The next prime is 19343059721. The reversal of 19343059680 is 8695034391.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2795425 + ... + 2802335.

It is an arithmetic number, because the mean of its divisors is an integer number (195955200).

Almost surely, 219343059680 is an apocalyptic number.

19343059680 is a gapful number since it is divisible by the number (10) 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 19343059680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37623398400).

19343059680 is an abundant number, since it is smaller than the sum of its proper divisors (55903737120).

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

19343059680 is a wasteful number, since it uses less digits than its factorization.

19343059680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6967 (or 6945 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 48.

The spelling of 19343059680 in words is "nineteen billion, three hundred forty-three million, fifty-nine thousand, six hundred eighty".