Base | Representation |
---|---|
bin | 11110001100000011111101 |
3 | 112220001120221 |
4 | 132030003331 |
5 | 4011214400 |
6 | 441341341 |
7 | 124160041 |
oct | 36140375 |
9 | 15801527 |
10 | 7913725 |
11 | 4515776 |
12 | 2797851 |
13 | 18410a1 |
14 | 10a0021 |
15 | a64c1a |
hex | 78c0fd |
7913725 has 12 divisors (see below), whose sum is σ = 10240416. Its totient is φ = 6055280.
The previous prime is 7913701. The next prime is 7913749. The reversal of 7913725 is 5273197.
It is an interprime number because it is at equal distance from previous prime (7913701) and next prime (7913749).
It is not a de Polignac number, because 7913725 - 211 = 7911677 is a prime.
It is a Duffinian number.
7913725 is a lucky number.
It is a congruent number.
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 11 ways as a sum of consecutive naturals, for example, 6307 + ... + 7456.
It is an arithmetic number, because the mean of its divisors is an integer number (853368).
Almost surely, 27913725 is an apocalyptic number.
It is an amenable number.
7913725 is a deficient number, since it is larger than the sum of its proper divisors (2326691).
7913725 is a wasteful number, since it uses less digits than its factorization.
7913725 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13796 (or 13791 counting only the distinct ones).
The product of its digits is 13230, while the sum is 34.
The square root of 7913725 is about 2813.1343729015. The cubic root of 7913725 is about 199.2784415644.
The spelling of 7913725 in words is "seven million, nine hundred thirteen thousand, seven hundred twenty-five".
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