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20084051919 = 310516369823
BaseRepresentation
bin10010101101000110…
…100100111111001111
31220211200200112210210
4102231012210333033
5312113004130134
613120530533503
71310462424141
oct225506447717
956750615723
1020084051919
118576a18518
123a86137293
131b80c263b9
14d87524c91
157c83202e9
hex4ad1a4fcf

20084051919 has 8 divisors (see below), whose sum is σ = 26804219392. Its totient is φ = 13376626200.

The previous prime is 20084051917. The next prime is 20084051921. The reversal of 20084051919 is 91915048002.

It is an interprime number because it is at equal distance from previous prime (20084051917) and next prime (20084051921).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20084051919 - 21 = 20084051917 is a prime.

It is a super-2 number, since 2×200840519192 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20084051917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3181759 + ... + 3188064.

It is an arithmetic number, because the mean of its divisors is an integer number (3350527424).

Almost surely, 220084051919 is an apocalyptic number.

20084051919 is a deficient number, since it is larger than the sum of its proper divisors (6720167473).

20084051919 is a wasteful number, since it uses less digits than its factorization.

20084051919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6370877.

The product of its (nonzero) digits is 25920, while the sum is 39.

The spelling of 20084051919 in words is "twenty billion, eighty-four million, fifty-one thousand, nine hundred nineteen".

Divisors: 1 3 1051 3153 6369823 19109469 6694683973 20084051919