| Base | Representation |
|---|---|
| bin | 110001100010… |
| … | …1000000000100 |
| 3 | 1210212112220100 |
| 4 | 1203011000010 |
| 5 | 23122111430 |
| 6 | 2324404100 |
| 7 | 433523163 |
| oct | 143050004 |
| 9 | 53775810 |
| 10 | 25972740 |
| 11 | 1372a782 |
| 12 | 8846630 |
| 13 | 54c4bb1 |
| 14 | 36413da |
| 15 | 2430960 |
| hex | 18c5004 |
25972740 has 72 divisors (see below), whose sum is σ = 79207128. Its totient is φ = 6888960.
The previous prime is 25972733. The next prime is 25972741. The reversal of 25972740 is 4727952.
25972740 is a `hidden beast` number, since 2 + 597 + 27 + 40 = 666.
It can be written as a sum of positive squares in 4 ways, for example, as 389376 + 25583364 = 624^2 + 5058^2 .
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 25972695 and 25972704.
It is not an unprimeable number, because it can be changed into a prime (25972741) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56110 + ... + 56570.
It is an arithmetic number, because the mean of its divisors is an integer number (1100099).
Almost surely, 225972740 is an apocalyptic number.
25972740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 25972740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39603564).
25972740 is an abundant number, since it is smaller than the sum of its proper divisors (53234388).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25972740 is a wasteful number, since it uses less digits than its factorization.
25972740 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 789 (or 784 counting only the distinct ones).
The product of its (nonzero) digits is 35280, while the sum is 36.
The square root of 25972740 is about 5096.3457496524. The cubic root of 25972740 is about 296.1460351958.
The spelling of 25972740 in words is "twenty-five million, nine hundred seventy-two thousand, seven hundred forty".
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