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23043202820 = 22511154967619
BaseRepresentation
bin10101011101011110…
…110101111100000100
32012110220211222201022
4111131132311330010
5334143024442240
614330315450312
71444013664221
oct253536657404
965426758638
1023043202820
119855318380
124571156998
132233007771
141188536948
158ecee59b5
hex55d7b5f04

23043202820 has 48 divisors (see below), whose sum is σ = 52824744000. Its totient is φ = 8373813120.

The previous prime is 23043202807. The next prime is 23043202841. The reversal of 23043202820 is 2820234032.

It is a self number, because there is not a number n which added to its sum of digits gives 23043202820.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306971 + ... + 374589.

It is an arithmetic number, because the mean of its divisors is an integer number (1100515500).

Almost surely, 223043202820 is an apocalyptic number.

23043202820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23043202820 is an abundant number, since it is smaller than the sum of its proper divisors (29781541180).

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

23043202820 is a wasteful number, since it uses less digits than its factorization.

23043202820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69188 (or 69186 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 23043202820 its reverse (2820234032), we get a palindrome (25863436852).

The spelling of 23043202820 in words is "twenty-three billion, forty-three million, two hundred two thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 1549 3098 6196 7745 15490 17039 30980 34078 67619 68156 85195 135238 170390 270476 338095 340780 676190 743809 1352380 1487618 2975236 3719045 7438090 14876180 104741831 209483662 418967324 523709155 1047418310 1152160141 2094836620 2304320282 4608640564 5760800705 11521601410 23043202820