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23305523860 = 2258391388887
BaseRepresentation
bin10101101101000111…
…100001001010010100
32020011012110021112101
4111231013201022110
5340212203230420
614412330131444
71453350453463
oct255507411224
966135407471
1023305523860
11997a3a7023
124624b80b84
132275472308
1411b12dc9da
1591606060a
hex56d1e1294

23305523860 has 24 divisors (see below), whose sum is σ = 48999968640. Its totient is φ = 9311091744.

The previous prime is 23305523833. The next prime is 23305523863. The reversal of 23305523860 is 6832550332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23305523863) 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, 677664 + ... + 711223.

It is an arithmetic number, because the mean of its divisors is an integer number (2041665360).

Almost surely, 223305523860 is an apocalyptic number.

23305523860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23305523860 is an abundant number, since it is smaller than the sum of its proper divisors (25694444780).

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

23305523860 is a wasteful number, since it uses less digits than its factorization.

23305523860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389735 (or 1389733 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 37.

The spelling of 23305523860 in words is "twenty-three billion, three hundred five million, five hundred twenty-three thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 839 1678 3356 4195 8390 16780 1388887 2777774 5555548 6944435 13888870 27777740 1165276193 2330552386 4661104772 5826380965 11652761930 23305523860