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28976318450 = 2523118694399
BaseRepresentation
bin11010111111000111…
…111000011111110010
32202210102001111021122
4122333013320133302
5433320414142300
621151143022242
72044026433352
oct327707703762
982712044248
1028976318450
111131a415a22
12574813a982
13296a285b81
14158c4d4b62
15b48d1ac85
hex6bf1f87f2

28976318450 has 24 divisors (see below), whose sum is σ = 55634534400. Its totient is φ = 11216638800.

The previous prime is 28976318443. The next prime is 28976318471. The reversal of 28976318450 is 5481367982.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28976318392 and 28976318401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9345650 + ... + 9348749.

It is an arithmetic number, because the mean of its divisors is an integer number (2318105600).

It is a 1-persistent number, because it is pandigital, but 2⋅28976318450 = 57952636900 is not.

Almost surely, 228976318450 is an apocalyptic number.

28976318450 is a deficient number, since it is larger than the sum of its proper divisors (26658215950).

28976318450 is a wasteful number, since it uses less digits than its factorization.

28976318450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18694442 (or 18694437 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 28976318450 in words is "twenty-eight billion, nine hundred seventy-six million, three hundred eighteen thousand, four hundred fifty".

Divisors: 1 2 5 10 25 31 50 62 155 310 775 1550 18694399 37388798 93471995 186943990 467359975 579526369 934719950 1159052738 2897631845 5795263690 14488159225 28976318450