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18683481022 = 233140170381
BaseRepresentation
bin10001011001100111…
…110100101110111110
31210020002021011201121
4101121213310232332
5301230432343042
612325535501154
71230664653103
oct213147645676
953202234647
1018683481022
117a18379908
1237550877ba
1319b9a07b1b
14c93504aaa
157453b6367
hex4599f4bbe

18683481022 has 16 divisors (see below), whose sum is σ = 28180389744. Its totient is φ = 9290160000.

The previous prime is 18683481013. The next prime is 18683481053. The reversal of 18683481022 is 22018438681.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 18683481022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230272 + ... + 300652.

It is an arithmetic number, because the mean of its divisors is an integer number (1761274359).

Almost surely, 218683481022 is an apocalyptic number.

18683481022 is a deficient number, since it is larger than the sum of its proper divisors (9496908722).

18683481022 is a wasteful number, since it uses less digits than its factorization.

18683481022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71115.

The product of its (nonzero) digits is 147456, while the sum is 43.

The spelling of 18683481022 in words is "eighteen billion, six hundred eighty-three million, four hundred eighty-one thousand, twenty-two".

Divisors: 1 2 331 401 662 802 70381 132731 140762 265462 23296111 28222781 46592222 56445562 9341740511 18683481022