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22953585920 = 28517932489
BaseRepresentation
bin10101011000001000…
…111110110100000000
32012020200012222102212
4111120020332310000
5334002104222140
614313355001252
71441545155366
oct253010766400
965220188385
1022953585920
119809778921
124547139228
13221a58b005
14117a689636
158e51e2765
hex55823ed00

22953585920 has 36 divisors (see below), whose sum is σ = 54981014340. Its totient is φ = 9181433856.

The previous prime is 22953585917. The next prime is 22953585983. The reversal of 22953585920 is 2958535922.

It can be written as a sum of positive squares in 2 ways, for example, as 8314521856 + 14639064064 = 91184^2 + 120992^2 .

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8964965 + ... + 8967524.

Almost surely, 222953585920 is an apocalyptic number.

22953585920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22953585920 is an abundant number, since it is smaller than the sum of its proper divisors (32027428420).

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

22953585920 is an equidigital number, since it uses as much as digits as its factorization.

22953585920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17932510 (or 17932496 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 50.

The spelling of 22953585920 in words is "twenty-two billion, nine hundred fifty-three million, five hundred eighty-five thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 640 1280 17932489 35864978 71729956 89662445 143459912 179324890 286919824 358649780 573839648 717299560 1147679296 1434599120 2295358592 2869198240 4590717184 5738396480 11476792960 22953585920