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19375108830 = 232571119374197
BaseRepresentation
bin10010000010110110…
…001011001011011110
31212000021200111201100
4102002312023023132
5304140011440310
612522323453530
71254063464520
oct220266131336
955007614640
1019375108830
118242820040
1239088272a6
131a9a0a554c
14d1b2dda10
15785e82ec0
hex482d8b2de

19375108830 has 768 divisors, whose sum is σ = 70270986240. Its totient is φ = 3583180800.

The previous prime is 19375108817. The next prime is 19375108891. The reversal of 19375108830 is 3880157391.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 199743342 + ... + 199743438.

It is an arithmetic number, because the mean of its divisors is an integer number (91498680).

Almost surely, 219375108830 is an apocalyptic number.

19375108830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a pronic number, being equal to 139194×139195.

19375108830 is the 113652-nd pentagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19375108830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35135493120).

19375108830 is an abundant number, since it is smaller than the sum of its proper divisors (50895877410).

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

19375108830 is a wasteful number, since it uses less digits than its factorization.

19375108830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The spelling of 19375108830 in words is "nineteen billion, three hundred seventy-five million, one hundred eight thousand, eight hundred thirty".