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2126802980 = 225106340149
BaseRepresentation
bin111111011000100…
…0111000000100100
312111012221210012202
41332301013000210
513323430143410
6551012434032
7103463345531
oct17661070044
95435853182
102126802980
119a1585615
124b4318918
1327b813903
14162665d88
15c6aadca5
hex7ec47024

2126802980 has 12 divisors (see below), whose sum is σ = 4466286300. Its totient is φ = 850721184.

The previous prime is 2126802971. The next prime is 2126802983. The reversal of 2126802980 is 892086212.

2126802980 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1228362304 + 898440676 = 35048^2 + 29974^2 .

It is not an unprimeable number, because it can be changed into a prime (2126802983) 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, 53170055 + ... + 53170094.

It is an arithmetic number, because the mean of its divisors is an integer number (372190525).

Almost surely, 22126802980 is an apocalyptic number.

2126802980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2126802980 is an abundant number, since it is smaller than the sum of its proper divisors (2339483320).

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

2126802980 is a wasteful number, since it uses less digits than its factorization.

2126802980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106340158 (or 106340156 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 2126802980 is about 46117.2742039249. The cubic root of 2126802980 is about 1286.0042979764.

The spelling of 2126802980 in words is "two billion, one hundred twenty-six million, eight hundred two thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 106340149 212680298 425360596 531700745 1063401490 2126802980