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19476797380 = 2258991112011
BaseRepresentation
bin10010001000111010…
…000101011111000100
31212021101000211011221
4102020322011133010
5304342030004010
612540355210124
71256440021555
oct221072053704
955241024157
1019476797380
118295165167
1239368a6944
131ab518a7a1
14d2aa1032c
1578ed6cdda
hex488e857c4

19476797380 has 48 divisors (see below), whose sum is σ = 41409688320. Its totient is φ = 7694086400.

The previous prime is 19476797377. The next prime is 19476797383. The reversal of 19476797380 is 8379767491.

It is an interprime number because it is at equal distance from previous prime (19476797377) and next prime (19476797383).

It is not an unprimeable number, because it can be changed into a prime (19476797383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1615575 + ... + 1627585.

It is an arithmetic number, because the mean of its divisors is an integer number (862701840).

Almost surely, 219476797380 is an apocalyptic number.

19476797380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19476797380 is an abundant number, since it is smaller than the sum of its proper divisors (21932890940).

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

19476797380 is a wasteful number, since it uses less digits than its factorization.

19476797380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13020 (or 13018 counting only the distinct ones).

The product of its (nonzero) digits is 16003008, while the sum is 61.

The spelling of 19476797380 in words is "nineteen billion, four hundred seventy-six million, seven hundred ninety-seven thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 89 178 356 445 890 911 1780 1822 3644 4555 9110 12011 18220 24022 48044 60055 81079 120110 162158 240220 324316 405395 810790 1068979 1621580 2137958 4275916 5344895 10689790 10942021 21379580 21884042 43768084 54710105 109420210 218840420 973839869 1947679738 3895359476 4869199345 9738398690 19476797380