Base | Representation |
---|---|
bin | 101011001110100… |
… | …001110110110100 |
3 | 1212112122110010121 |
4 | 223032201312310 |
5 | 2441124311410 |
6 | 155544101324 |
7 | 23654226130 |
oct | 5316416664 |
9 | 1775573117 |
10 | 725228980 |
11 | 3424112a3 |
12 | 182a64844 |
13 | b7333898 |
14 | 6c4643c0 |
15 | 43a079da |
hex | 2b3a1db4 |
725228980 has 48 divisors (see below), whose sum is σ = 1745654400. Its totient is φ = 247920768.
The previous prime is 725228963. The next prime is 725228981. The reversal of 725228980 is 89822527.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (725228981) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41439 + ... + 56281.
It is an arithmetic number, because the mean of its divisors is an integer number (36367800).
Almost surely, 2725228980 is an apocalyptic number.
725228980 is a gapful number since it is divisible by the number (70) formed by its first and last digit.
It is an amenable number.
725228980 is an abundant number, since it is smaller than the sum of its proper divisors (1020425420).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
725228980 is a wasteful number, since it uses less digits than its factorization.
725228980 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15208 (or 15206 counting only the distinct ones).
The product of its (nonzero) digits is 161280, while the sum is 43.
The square root of 725228980 is about 26930.0757518430. The cubic root of 725228980 is about 898.4454563459.
The spelling of 725228980 in words is "seven hundred twenty-five million, two hundred twenty-eight thousand, nine hundred eighty".
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