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18030982 = 2172918287
BaseRepresentation
bin100010011001…
…0000110000110
31020221001212011
41010302012012
514103442412
61442244434
7306155314
oct104620606
936831764
1018030982
11a1a5a42
12605671a
133974128
1425750b4
1518b27a7
hex1132186

18030982 has 16 divisors (see below), whose sum is σ = 29626560. Its totient is φ = 8192128.

The previous prime is 18030977. The next prime is 18031007. The reversal of 18030982 is 28903081.

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, 8158 + ... + 10129.

It is an arithmetic number, because the mean of its divisors is an integer number (1851660).

Almost surely, 218030982 is an apocalyptic number.

18030982 is a deficient number, since it is larger than the sum of its proper divisors (11595578).

18030982 is a wasteful number, since it uses less digits than its factorization.

18030982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18335.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 18030982 is about 4246.2903810267. The cubic root of 18030982 is about 262.2244158450.

The spelling of 18030982 in words is "eighteen million, thirty thousand, nine hundred eighty-two".

Divisors: 1 2 17 29 34 58 493 986 18287 36574 310879 530323 621758 1060646 9015491 18030982