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22757868681 = 355725315381
BaseRepresentation
bin10101001100011110…
…011000010010001001
32011202000221111212020
4111030132120102021
5333102003244211
614242124035053
71433650456242
oct251436302211
964660844766
1022757868681
119719250639
1244b1692a89
1321b8b731b2
14115c69dcc9
158d2e32306
hex54c798489

22757868681 has 16 divisors (see below), whose sum is σ = 30415963968. Its totient is φ = 15135876800.

The previous prime is 22757868619. The next prime is 22757868689. The reversal of 22757868681 is 18686875722.

It is a cyclic number.

It is not a de Polignac number, because 22757868681 - 211 = 22757866633 is a prime.

It is a super-2 number, since 2×227578686812 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22757868689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4226611 + ... + 4231991.

It is an arithmetic number, because the mean of its divisors is an integer number (1900997748).

Almost surely, 222757868681 is an apocalyptic number.

It is an amenable number.

22757868681 is a deficient number, since it is larger than the sum of its proper divisors (7658095287).

22757868681 is a wasteful number, since it uses less digits than its factorization.

22757868681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8472.

The product of its digits is 18063360, while the sum is 60.

The spelling of 22757868681 in words is "twenty-two billion, seven hundred fifty-seven million, eight hundred sixty-eight thousand, six hundred eighty-one".

Divisors: 1 3 557 1671 2531 5381 7593 16143 1409767 2997217 4229301 8991651 13619311 40857933 7585956227 22757868681