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23243222780 = 2253137489069
BaseRepresentation
bin10101101001011001…
…110110111011111100
32012222212020001111222
4111221121312323330
5340100231112110
614402222532512
71451663063621
oct255131667374
965885201458
1023243222780
119948214328
124608137138
13226559ab7b
1411a6d22348
15910855c55
hex569676efc

23243222780 has 24 divisors (see below), whose sum is σ = 50385310080. Its totient is φ = 8997376320.

The previous prime is 23243222777. The next prime is 23243222801. The reversal of 23243222780 is 8722234232.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 23243222780.

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, 18743915 + ... + 18745154.

It is an arithmetic number, because the mean of its divisors is an integer number (2099387920).

Almost surely, 223243222780 is an apocalyptic number.

23243222780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23243222780 is an abundant number, since it is smaller than the sum of its proper divisors (27142087300).

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

23243222780 is a wasteful number, since it uses less digits than its factorization.

23243222780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37489109 (or 37489107 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 35.

The spelling of 23243222780 in words is "twenty-three billion, two hundred forty-three million, two hundred twenty-two thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 37489069 74978138 149956276 187445345 374890690 749781380 1162161139 2324322278 4648644556 5810805695 11621611390 23243222780