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18804520612802 = 2137460911489003
BaseRepresentation
bin1000100011010010001001…
…10001010111001111000010
32110120200202101002022122002
410101221010301113033002
54431043124234102202
6103554402201544002
73650403356626661
oct421510461271702
973520671068562
1018804520612802
115a9aa52720291
122138537aa5002
13a6534943bb62
14490202286dd8
15229236eab302
hex111a44c573c2

18804520612802 has 16 divisors (see below), whose sum is σ = 28413305360352. Its totient is φ = 9333421896480.

The previous prime is 18804520612739. The next prime is 18804520612817. The reversal of 18804520612802 is 20821602540881.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11884433 + ... + 13373435.

It is an arithmetic number, because the mean of its divisors is an integer number (1775831585022).

Almost surely, 218804520612802 is an apocalyptic number.

18804520612802 is a deficient number, since it is larger than the sum of its proper divisors (9608784747550).

18804520612802 is a wasteful number, since it uses less digits than its factorization.

18804520612802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1535233.

The product of its (nonzero) digits is 491520, while the sum is 47.

The spelling of 18804520612802 in words is "eighteen trillion, eight hundred four billion, five hundred twenty million, six hundred twelve thousand, eight hundred two".

Divisors: 1 2 137 274 46091 92182 1489003 2978006 6314467 12628934 203993411 407986822 68629637273 137259274546 9402260306401 18804520612802