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61838754050 = 2521236775081
BaseRepresentation
bin111001100101111000…
…001000000100000010
312220121122112012010002
4321211320020010002
52003121210112200
644224111040002
74316264510453
oct714570100402
9186548465102
1061838754050
1124253401207
12bb99810002
135aa6698938
142dc8b7712a
15191ddb3bd5
hexe65e08102

61838754050 has 12 divisors (see below), whose sum is σ = 115020082626. Its totient is φ = 24735501600.

The previous prime is 61838754031. The next prime is 61838754091. The reversal of 61838754050 is 5045783816.

It can be written as a sum of positive squares in 3 ways, for example, as 30865921969 + 30972832081 = 175687^2 + 175991^2 .

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 61838753986 and 61838754004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 618387491 + ... + 618387590.

Almost surely, 261838754050 is an apocalyptic number.

61838754050 is a deficient number, since it is larger than the sum of its proper divisors (53181328576).

61838754050 is a wasteful number, since it uses less digits than its factorization.

61838754050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236775093 (or 1236775088 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 61838754050 in words is "sixty-one billion, eight hundred thirty-eight million, seven hundred fifty-four thousand, fifty".

Divisors: 1 2 5 10 25 50 1236775081 2473550162 6183875405 12367750810 30919377025 61838754050