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22001020984 = 232994831987
BaseRepresentation
bin10100011111010111…
…001111000000111000
32002210021210200000001
4110133113033000320
5330024230132414
614035050122344
71406130410215
oct243727170070
962707720001
1022001020984
119370003778
1243201203b4
1320c811b917
1410c9d68b0c
1588b781074
hex51f5cf038

22001020984 has 16 divisors (see below), whose sum is σ = 42674394600. Its totient is φ = 10621182432.

The previous prime is 22001020981. The next prime is 22001020997. The reversal of 22001020984 is 48902010022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001020981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47415762 + ... + 47416225.

Almost surely, 222001020984 is an apocalyptic number.

It is an amenable number.

22001020984 is a deficient number, since it is larger than the sum of its proper divisors (20673373616).

22001020984 is a wasteful number, since it uses less digits than its factorization.

22001020984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94832022 (or 94832018 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The spelling of 22001020984 in words is "twenty-two billion, one million, twenty thousand, nine hundred eighty-four".

Divisors: 1 2 4 8 29 58 116 232 94831987 189663974 379327948 758655896 2750127623 5500255246 11000510492 22001020984