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22686868860 = 2235378114481
BaseRepresentation
bin10101001000001111…
…100010010101111100
32011120002100100102020
4111020033202111330
5332430314300420
614231110200140
71432126126545
oct251017422574
964502310366
1022686868860
1196921673a7
124491953050
1321a7244576
14115309b4cc
158cbaaa340
hex5483e257c

22686868860 has 24 divisors (see below), whose sum is σ = 63523232976. Its totient is φ = 6049831680.

The previous prime is 22686868819. The next prime is 22686868909. The reversal of 22686868860 is 6886868622.

It is a Harshad number since it is a multiple of its sum of digits (60), and also a Moran number because the ratio is a prime number: 378114481 = 22686868860 / (2 + 2 + 6 + 8 + 6 + 8 + 6 + 8 + 8 + 6 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 22686868794 and 22686868803.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189057181 + ... + 189057300.

It is an arithmetic number, because the mean of its divisors is an integer number (2646801374).

Almost surely, 222686868860 is an apocalyptic number.

22686868860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22686868860 is an abundant number, since it is smaller than the sum of its proper divisors (40836364116).

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

22686868860 is a wasteful number, since it uses less digits than its factorization.

22686868860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378114493 (or 378114491 counting only the distinct ones).

The product of its (nonzero) digits is 21233664, while the sum is 60.

The spelling of 22686868860 in words is "twenty-two billion, six hundred eighty-six million, eight hundred sixty-eight thousand, eight hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 378114481 756228962 1134343443 1512457924 1890572405 2268686886 3781144810 4537373772 5671717215 7562289620 11343434430 22686868860