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2506830685 = 56125731981
BaseRepresentation
bin1001010101101011…
…0011001101011101
320110201001012012221
42111122303031131
520113222040220
61052430025341
7116056465162
oct22532631535
96421035187
102506830685
111077049aa7
1259b648251
1330c481588
1419ad0c069
15ea1299aa
hex956b335d

2506830685 has 16 divisors (see below), whose sum is σ = 3069504432. Its totient is φ = 1964851200.

The previous prime is 2506830679. The next prime is 2506830707. The reversal of 2506830685 is 5860386052.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 236975236 + 2269855449 = 15394^2 + 47643^2 .

It is not a de Polignac number, because 2506830685 - 211 = 2506828637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62395 + ... + 94375.

It is an arithmetic number, because the mean of its divisors is an integer number (191844027).

Almost surely, 22506830685 is an apocalyptic number.

It is an amenable number.

2506830685 is a deficient number, since it is larger than the sum of its proper divisors (562673747).

2506830685 is a wasteful number, since it uses less digits than its factorization.

2506830685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32304.

The product of its (nonzero) digits is 345600, while the sum is 43.

The square root of 2506830685 is about 50068.2602553754. The cubic root of 2506830685 is about 1358.4437730053.

The spelling of 2506830685 in words is "two billion, five hundred six million, eight hundred thirty thousand, six hundred eighty-five".

Divisors: 1 5 61 257 305 1285 15677 31981 78385 159905 1950841 8219117 9754205 41095585 501366137 2506830685