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56807247090050 = 25210659012
BaseRepresentation
bin11001110101010011101111…
…10010001001000110000010
321110010201102201111212122022
430322221313302021012002
524421212220223340200
6320452520011041442
714652121353115622
oct1472516762110602
9243121381455568
1056807247090050
1117111900025256
126455760140282
132590b922993b2
1410056b2038882
15687a48260885
hex33aa77c89182

56807247090050 has 18 divisors (see below), whose sum is σ = 105661578716379. Its totient is φ = 22722877518000.

The previous prime is 56807247090047. The next prime is 56807247090067. The reversal of 56807247090050 is 5009074270865.

It can be written as a sum of positive squares in 5 ways, for example, as 49564092191329 + 7243154898721 = 7040177^2 + 2691311^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=5329505.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56807247089974 and 56807247090001.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 52762100 + ... + 53828000.

Almost surely, 256807247090050 is an apocalyptic number.

56807247090050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56807247090050 is a deficient number, since it is larger than the sum of its proper divisors (48854331626329).

56807247090050 is an frugal number, since it uses more digits than its factorization.

56807247090050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2131814 (or 1065908 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 53.

The spelling of 56807247090050 in words is "fifty-six trillion, eight hundred seven billion, two hundred forty-seven million, ninety thousand, fifty".

Divisors: 1 2 5 10 25 50 1065901 2131802 5329505 10659010 26647525 53295050 1136144941801 2272289883602 5680724709005 11361449418010 28403623545025 56807247090050