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23827261668 = 2237283657877
BaseRepresentation
bin10110001100001101…
…110010100011100100
32021111120012022020220
4112030031302203210
5342244234333133
614540204524340
71502314245120
oct261415624344
967446168226
1023827261668
11a1179603a1
12474b8506b0
132329598802
141220712580
15946c6e5b3
hex58c3728e4

23827261668 has 24 divisors (see below), whose sum is σ = 63539364672. Its totient is φ = 6807789024.

The previous prime is 23827261663. The next prime is 23827261709. The reversal of 23827261668 is 86616272832.

It is a self number, because there is not a number n which added to its sum of digits gives 23827261668.

It is not an unprimeable number, because it can be changed into a prime (23827261663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141828855 + ... + 141829022.

It is an arithmetic number, because the mean of its divisors is an integer number (2647473528).

Almost surely, 223827261668 is an apocalyptic number.

23827261668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

23827261668 is an abundant number, since it is smaller than the sum of its proper divisors (39712103004).

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

23827261668 is a wasteful number, since it uses less digits than its factorization.

23827261668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283657891 (or 283657889 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 51.

The spelling of 23827261668 in words is "twenty-three billion, eight hundred twenty-seven million, two hundred sixty-one thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 283657877 567315754 850973631 1134631508 1701947262 1985605139 3403894524 3971210278 5956815417 7942420556 11913630834 23827261668