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18823263752 = 2319312191233
BaseRepresentation
bin10001100001111101…
…000011011000001000
31210120211021212120202
4101201331003120020
5302022223420002
612351451511332
71234313046656
oct214175033010
953524255522
1018823263752
117a8a272727
123793a58548
131a0c96a2b7
14ca7ccddd6
157527c8502
hex461f43608

18823263752 has 16 divisors (see below), whose sum is σ = 35476490940. Its totient is φ = 9362866176.

The previous prime is 18823263727. The next prime is 18823263757. The reversal of 18823263752 is 25736232881.

It can be written as a sum of positive squares in 2 ways, for example, as 18723543556 + 99720196 = 136834^2 + 9986^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18823263697 and 18823263706.

It is not an unprimeable number, because it can be changed into a prime (18823263757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6094073 + ... + 6097160.

Almost surely, 218823263752 is an apocalyptic number.

It is an amenable number.

18823263752 is a deficient number, since it is larger than the sum of its proper divisors (16653227188).

18823263752 is a wasteful number, since it uses less digits than its factorization.

18823263752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12191432 (or 12191428 counting only the distinct ones).

The product of its digits is 967680, while the sum is 47.

The spelling of 18823263752 in words is "eighteen billion, eight hundred twenty-three million, two hundred sixty-three thousand, seven hundred fifty-two".

Divisors: 1 2 4 8 193 386 772 1544 12191233 24382466 48764932 97529864 2352907969 4705815938 9411631876 18823263752