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20054445020 = 2252575716833
BaseRepresentation
bin10010101011010101…
…101000101111011100
31220202121222100202222
4102223111220233130
5312032414220040
613113552204512
71306652653511
oct225325505734
956677870688
1020054445020
118561236405
123a78239738
131b77a5b31c
14d83619308
157c5922bb5
hex4ab568bdc

20054445020 has 48 divisors (see below), whose sum is σ = 42358444128. Its totient is φ = 7975403520.

The previous prime is 20054445001. The next prime is 20054445031. The reversal of 20054445020 is 2054445002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2931524 + ... + 2938356.

It is an arithmetic number, because the mean of its divisors is an integer number (882467586).

Almost surely, 220054445020 is an apocalyptic number.

20054445020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20054445020 is an abundant number, since it is smaller than the sum of its proper divisors (22303999108).

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

20054445020 is a wasteful number, since it uses less digits than its factorization.

20054445020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7670 (or 7668 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The spelling of 20054445020 in words is "twenty billion, fifty-four million, four hundred forty-five thousand, twenty".

Divisors: 1 2 4 5 10 20 257 514 571 1028 1142 1285 2284 2570 2855 5140 5710 6833 11420 13666 27332 34165 68330 136660 146747 293494 586988 733735 1467470 1756081 2934940 3512162 3901643 7024324 7803286 8780405 15606572 17560810 19508215 35121620 39016430 78032860 1002722251 2005444502 4010889004 5013611255 10027222510 20054445020