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20149482876 = 2238918866557
BaseRepresentation
bin10010110001000000…
…001011010101111100
31221000020210210012120
4102301000023111330
5312231231423001
613131225202540
71312215531015
oct226100132574
957006723176
1020149482876
1185aa948796
123aa4030450
131b91655343
14d920b800c
157cde47236
hex4b100b57c

20149482876 has 24 divisors (see below), whose sum is σ = 47543726160. Its totient is φ = 6641027712.

The previous prime is 20149482853. The next prime is 20149482877. The reversal of 20149482876 is 67828494102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20149482877) 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, 9432211 + ... + 9434346.

It is an arithmetic number, because the mean of its divisors is an integer number (1980988590).

Almost surely, 220149482876 is an apocalyptic number.

It is an amenable number.

20149482876 is an abundant number, since it is smaller than the sum of its proper divisors (27394243284).

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

20149482876 is a wasteful number, since it uses less digits than its factorization.

20149482876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18866653 (or 18866651 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 51.

The spelling of 20149482876 in words is "twenty billion, one hundred forty-nine million, four hundred eighty-two thousand, eight hundred seventy-six".

Divisors: 1 2 3 4 6 12 89 178 267 356 534 1068 18866557 37733114 56599671 75466228 113199342 226398684 1679123573 3358247146 5037370719 6716494292 10074741438 20149482876