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51012335050 = 2521020246701
BaseRepresentation
bin101111100000100100…
…100111010111001010
311212200010201010020121
4233200210213113022
51313433124210200
635233523213454
73454063456615
oct574044472712
9155603633217
1051012335050
111a6a8151396
129a77b1728a
134a6c708551
14267cd6d17c
1514d86b0e1a
hexbe09275ca

51012335050 has 12 divisors (see below), whose sum is σ = 94882943286. Its totient is φ = 20404934000.

The previous prime is 51012335029. The next prime is 51012335069. The reversal of 51012335050 is 5053321015.

51012335050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 43396805761 + 7615529289 = 208319^2 + 87267^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 510123301 + ... + 510123400.

Almost surely, 251012335050 is an apocalyptic number.

51012335050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51012335050 is a deficient number, since it is larger than the sum of its proper divisors (43870608236).

51012335050 is a wasteful number, since it uses less digits than its factorization.

51012335050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020246713 (or 1020246708 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 25.

Adding to 51012335050 its reverse (5053321015), we get a palindrome (56065656065).

The spelling of 51012335050 in words is "fifty-one billion, twelve million, three hundred thirty-five thousand, fifty".

Divisors: 1 2 5 10 25 50 1020246701 2040493402 5101233505 10202467010 25506167525 51012335050