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913825 = 52113323
BaseRepresentation
bin11011111000110100001
31201102112101
43133012201
5213220300
631330401
710524133
oct3370641
91642471
10913825
11574630
12380a01
1325cc33
1419b053
15130b6a
hexdf1a1

913825 has 12 divisors (see below), whose sum is σ = 1236528. Its totient is φ = 664400.

The previous prime is 913811. The next prime is 913853. The reversal of 913825 is 528319.

It is not a de Polignac number, because 913825 - 211 = 911777 is a prime.

It is a super-2 number, since 2×9138252 = 1670152261250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 913793 and 913802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1387 + ... + 1936.

It is an arithmetic number, because the mean of its divisors is an integer number (103044).

2913825 is an apocalyptic number.

It is an amenable number.

913825 is a deficient number, since it is larger than the sum of its proper divisors (322703).

913825 is a wasteful number, since it uses less digits than its factorization.

913825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3344 (or 3339 counting only the distinct ones).

The product of its digits is 2160, while the sum is 28.

The square root of 913825 is about 955.9419438439. The cubic root of 913825 is about 97.0407948292.

It can be divided in two parts, 91 and 3825, that added together give a triangular number (3916 = T88).

The spelling of 913825 in words is "nine hundred thirteen thousand, eight hundred twenty-five".

Divisors: 1 5 11 25 55 275 3323 16615 36553 83075 182765 913825