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18582442968 = 2335691360753
BaseRepresentation
bin10001010011100110…
…011001001111011000
31202222001010220120110
4101103212121033120
5301024101133333
612311530124320
71225330105365
oct212346311730
952861126513
1018582442968
117976339491
1237272806a0
1319a1abc9ab
14c83d2346c
1573b5a9063
hex4539993d8

18582442968 has 32 divisors (see below), whose sum is σ = 46537786800. Its totient is φ = 6183257088.

The previous prime is 18582442961. The next prime is 18582442973. The reversal of 18582442968 is 86924428581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18582442961) 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, 666721 + ... + 694032.

Almost surely, 218582442968 is an apocalyptic number.

It is an amenable number.

18582442968 is an abundant number, since it is smaller than the sum of its proper divisors (27955343832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18582442968 is a wasteful number, since it uses less digits than its factorization.

18582442968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361331 (or 1361327 counting only the distinct ones).

The product of its digits is 8847360, while the sum is 57.

The spelling of 18582442968 in words is "eighteen billion, five hundred eighty-two million, four hundred forty-two thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 24 569 1138 1707 2276 3414 4552 6828 13656 1360753 2721506 4082259 5443012 8164518 10886024 16329036 32658072 774268457 1548536914 2322805371 3097073828 4645610742 6194147656 9291221484 18582442968