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18582017996 = 2221158737507
BaseRepresentation
bin10001010011100100…
…110001011111001100
31202222000100022121202
4101103210301133030
5301023444033441
612311513045032
71225323355403
oct212344613714
952860308552
1018582017996
117976079173
1237270b6778
1319a19a1429
14c83c5263a
1573b52319b
hex4539317cc

18582017996 has 24 divisors (see below), whose sum is σ = 32729180736. Its totient is φ = 9230976720.

The previous prime is 18582017983. The next prime is 18582017999. The reversal of 18582017996 is 69971028581.

It is not an unprimeable number, because it can be changed into a prime (18582017999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 476675 + ... + 514181.

It is an arithmetic number, because the mean of its divisors is an integer number (1363715864).

Almost surely, 218582017996 is an apocalyptic number.

It is an amenable number.

18582017996 is a deficient number, since it is larger than the sum of its proper divisors (14147162740).

18582017996 is a wasteful number, since it uses less digits than its factorization.

18582017996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38309 (or 38307 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 56.

The spelling of 18582017996 in words is "eighteen billion, five hundred eighty-two million, seventeen thousand, nine hundred ninety-six".

Divisors: 1 2 4 211 422 587 844 1174 2348 37507 75014 123857 150028 247714 495428 7913977 15827954 22016609 31655908 44033218 88066436 4645504499 9291008998 18582017996