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19984373070 = 235666145769
BaseRepresentation
bin10010100111001010…
…010101010101001110
31220120202010100010120
4102213022111111032
5311411444414240
613103010245410
71305142240224
oct224712252516
956522110116
1019984373070
118525726302
123a58886866
131b66395b2c
14d781b8b14
157be6d0ad0
hex4a729554e

19984373070 has 16 divisors (see below), whose sum is σ = 47962495440. Its totient is φ = 5329166144.

The previous prime is 19984373063. The next prime is 19984373093. The reversal of 19984373070 is 7037348991.

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 7 ways as a sum of consecutive naturals, for example, 333072855 + ... + 333072914.

It is an arithmetic number, because the mean of its divisors is an integer number (2997655965).

Almost surely, 219984373070 is an apocalyptic number.

19984373070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19984373070 is an abundant number, since it is smaller than the sum of its proper divisors (27978122370).

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

19984373070 is a wasteful number, since it uses less digits than its factorization.

19984373070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666145779.

The product of its (nonzero) digits is 1143072, while the sum is 51.

The spelling of 19984373070 in words is "nineteen billion, nine hundred eighty-four million, three hundred seventy-three thousand, seventy".

Divisors: 1 2 3 5 6 10 15 30 666145769 1332291538 1998437307 3330728845 3996874614 6661457690 9992186535 19984373070