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22853835640 = 235631905461
BaseRepresentation
bin10101010010001100…
…011101101101111000
32011222201112010210001
4111102030131231320
5333301040220030
614255433002344
71436224253266
oct252214355570
964881463701
1022853835640
119768437a79
1245198533b4
132202a0408c
14116b321436
158db58bcca
hex55231db78

22853835640 has 32 divisors (see below), whose sum is σ = 51502678560. Its totient is φ = 9127036800.

The previous prime is 22853835637. The next prime is 22853835677. The reversal of 22853835640 is 4653835822.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427491 + ... + 477970.

It is an arithmetic number, because the mean of its divisors is an integer number (1609458705).

Almost surely, 222853835640 is an apocalyptic number.

22853835640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22853835640 is an abundant number, since it is smaller than the sum of its proper divisors (28648842920).

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

22853835640 is a wasteful number, since it uses less digits than its factorization.

22853835640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906103 (or 906099 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 46.

The spelling of 22853835640 in words is "twenty-two billion, eight hundred fifty-three million, eight hundred thirty-five thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 20 40 631 1262 2524 3155 5048 6310 12620 25240 905461 1810922 3621844 4527305 7243688 9054610 18109220 36218440 571345891 1142691782 2285383564 2856729455 4570767128 5713458910 11426917820 22853835640