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50246402018 = 231251132
BaseRepresentation
bin101110110010111010…
…110011111111100010
311210200202110200122112
4232302322303333202
51310401034331033
635025522435322
73426103240661
oct566272637742
9153622420575
1050246402018
111a34486958a
1298a3502b42
134979b22837
142609350dd8
151491317c48
hexbb2eb3fe2

50246402018 has 18 divisors (see below), whose sum is σ = 77894543457. Its totient is φ = 24308020080.

The previous prime is 50246402009. The next prime is 50246402023. The reversal of 50246402018 is 81020464205.

It can be written as a sum of positive squares in 2 ways, for example, as 30061664689 + 20184737329 = 173383^2 + 142073^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=158503.

It is a Duffinian number.

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 8 ways as a sum of consecutive naturals, for example, 9824630 + ... + 9829742.

Almost surely, 250246402018 is an apocalyptic number.

50246402018 is a deficient number, since it is larger than the sum of its proper divisors (27648141439).

50246402018 is an frugal number, since it uses more digits than its factorization.

50246402018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10290 (or 5146 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

Multiplying 50246402018 by its sum of digits (32), we get a square (1607884864576 = 12680242).

The spelling of 50246402018 in words is "fifty billion, two hundred forty-six million, four hundred two thousand, eighteen".

Divisors: 1 2 31 62 961 1922 5113 10226 158503 317006 4913593 9827186 26142769 52285538 810425839 1620851678 25123201009 50246402018