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22870844560 = 245285885557
BaseRepresentation
bin10101010011001101…
…010110010010010000
32012000220112021122001
4111103031112102100
5333314414011220
614301241323344
71436521654054
oct252315262220
965026467561
1022870844560
119776aa5033
124523496554
1322063aac25
14116d6abc64
158dcceb80a
hex553356490

22870844560 has 20 divisors (see below), whose sum is σ = 53174713788. Its totient is φ = 9148337792.

The previous prime is 22870844551. The next prime is 22870844561. The reversal of 22870844560 is 6544807822.

It can be written as a sum of positive squares in 2 ways, for example, as 13310698384 + 9560146176 = 115372^2 + 97776^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 22870844560.

It is not an unprimeable number, because it can be changed into a prime (22870844561) 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, 142942699 + ... + 142942858.

Almost surely, 222870844560 is an apocalyptic number.

22870844560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22870844560 is an abundant number, since it is smaller than the sum of its proper divisors (30303869228).

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

22870844560 is a wasteful number, since it uses less digits than its factorization.

22870844560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285885570 (or 285885564 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 46.

The spelling of 22870844560 in words is "twenty-two billion, eight hundred seventy million, eight hundred forty-four thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 40 80 285885557 571771114 1143542228 1429427785 2287084456 2858855570 4574168912 5717711140 11435422280 22870844560