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23222000740 = 2253892984833
BaseRepresentation
bin10101101000001000…
…111001110001100100
32012221101021212100111
4111220020321301210
5340024313010430
614400144022404
71451314515031
oct255010716144
965841255314
1023222000740
119937239954
124601001a04
13226107a453
1411a419a388
1590da62c2a
hex568239c64

23222000740 has 24 divisors (see below), whose sum is σ = 48891580920. Its totient is φ = 9264918528.

The previous prime is 23222000677. The next prime is 23222000771. The reversal of 23222000740 is 4700022232.

It can be written as a sum of positive squares in 4 ways, for example, as 6295470336 + 16926530404 = 79344^2 + 130102^2 .

It is a super-2 number, since 2×232220007402 (a number of 22 digits) contains 22 as substring.

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, 1484637 + ... + 1500196.

It is an arithmetic number, because the mean of its divisors is an integer number (2037149205).

Almost surely, 223222000740 is an apocalyptic number.

23222000740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23222000740 is an abundant number, since it is smaller than the sum of its proper divisors (25669580180).

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

23222000740 is a wasteful number, since it uses less digits than its factorization.

23222000740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2985231 (or 2985229 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

Adding to 23222000740 its reverse (4700022232), we get a palindrome (27922022972).

The spelling of 23222000740 in words is "twenty-three billion, two hundred twenty-two million, seven hundred forty", and thus it is an aban number.

Divisors: 1 2 4 5 10 20 389 778 1556 1945 3890 7780 2984833 5969666 11939332 14924165 29848330 59696660 1161100037 2322200074 4644400148 5805500185 11611000370 23222000740