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19392000920 = 235484800023
BaseRepresentation
bin10010000011110110…
…100111001110011000
31212001110110201022022
4102003312213032120
5304203323012140
612524125514012
71254360200555
oct220366471630
955043421268
1019392000920
118251308346
123912412908
131aa073b176
14d1d659a2c
157876bd0b5
hex483da7398

19392000920 has 16 divisors (see below), whose sum is σ = 43632002160. Its totient is φ = 7756800352.

The previous prime is 19392000919. The next prime is 19392000937. The reversal of 19392000920 is 2900029391.

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 3 ways as a sum of consecutive naturals, for example, 242399972 + ... + 242400051.

It is an arithmetic number, because the mean of its divisors is an integer number (2727000135).

Almost surely, 219392000920 is an apocalyptic number.

19392000920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19392000920 is an abundant number, since it is smaller than the sum of its proper divisors (24240001240).

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

19392000920 is a wasteful number, since it uses less digits than its factorization.

19392000920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484800034 (or 484800030 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 35.

The spelling of 19392000920 in words is "nineteen billion, three hundred ninety-two million, nine hundred twenty", and thus it is an aban number.

Divisors: 1 2 4 5 8 10 20 40 484800023 969600046 1939200092 2424000115 3878400184 4848000230 9696000460 19392000920