Base | Representation |
---|---|
bin | 1110100110101… |
… | …0111100000001 |
3 | 11021021002122110 |
4 | 3221222330001 |
5 | 111140133200 |
6 | 10024525533 |
7 | 1342443150 |
oct | 351527401 |
9 | 137232573 |
10 | 61255425 |
11 | 31639120 |
12 | 186208a9 |
13 | c8c951a |
14 | 81c7597 |
15 | 559eb50 |
hex | 3a6af01 |
61255425 has 48 divisors (see below), whose sum is σ = 126277632. Its totient is φ = 25454400.
The previous prime is 61255423. The next prime is 61255427. The reversal of 61255425 is 52455216.
61255425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (61255423) and next prime (61255427).
It is not a de Polignac number, because 61255425 - 21 = 61255423 is a prime.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 61255392 and 61255401.
It is not an unprimeable number, because it can be changed into a prime (61255421) by changing a digit.
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 47 ways as a sum of consecutive naturals, for example, 472 + ... + 11078.
It is an arithmetic number, because the mean of its divisors is an integer number (2630784).
Almost surely, 261255425 is an apocalyptic number.
It is an amenable number.
61255425 is an abundant number, since it is smaller than the sum of its proper divisors (65022207).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
61255425 is a wasteful number, since it uses less digits than its factorization.
61255425 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10638 (or 10633 counting only the distinct ones).
The product of its digits is 12000, while the sum is 30.
The square root of 61255425 is about 7826.5845041116. The cubic root of 61255425 is about 394.1983957064.
The spelling of 61255425 in words is "sixty-one million, two hundred fifty-five thousand, four hundred twenty-five".
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