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893874709 = 72131403257
BaseRepresentation
bin110101010001110…
…111001000010101
32022021222112120201
4311101313020111
53312312442314
6224410500501
731102544500
oct6521671025
92267875521
10893874709
11419629332
1220b434731
13113260660
1486a04137
155371bb74
hex35477215

893874709 has 12 divisors (see below), whose sum is σ = 1119799884. Its totient is φ = 707241024.

The previous prime is 893874697. The next prime is 893874713. The reversal of 893874709 is 907478398.

893874709 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 2 ways, for example, as 127803025 + 766071684 = 11305^2 + 27678^2 .

It is not a de Polignac number, because 893874709 - 29 = 893874197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 893874709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (893884709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 700992 + ... + 702265.

It is an arithmetic number, because the mean of its divisors is an integer number (93316657).

Almost surely, 2893874709 is an apocalyptic number.

It is an amenable number.

893874709 is a deficient number, since it is larger than the sum of its proper divisors (225925175).

893874709 is a wasteful number, since it uses less digits than its factorization.

893874709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1403284 (or 1403277 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 55.

The square root of 893874709 is about 29897.7375230970. The cubic root of 893874709 is about 963.2940620744.

The spelling of 893874709 in words is "eight hundred ninety-three million, eight hundred seventy-four thousand, seven hundred nine".

Divisors: 1 7 13 49 91 637 1403257 9822799 18242341 68759593 127696387 893874709