Base | Representation |
---|---|
bin | 1110111011111… |
… | …11011111000000 |
3 | 22201210001000111 |
4 | 13131333133000 |
5 | 224034141340 |
6 | 20233401104 |
7 | 3051025024 |
oct | 735773700 |
9 | 281701014 |
10 | 125302720 |
11 | 64803874 |
12 | 35b69194 |
13 | 1cc6272a |
14 | 128da384 |
15 | b001aea |
hex | 777f7c0 |
125302720 has 112 divisors (see below), whose sum is σ = 323148960. Its totient is φ = 46116864.
The previous prime is 125302711. The next prime is 125302729. The reversal of 125302720 is 27203521.
125302720 = T2584 + T2585 + ... + T2620.
It is an interprime number because it is at equal distance from previous prime (125302711) and next prime (125302729).
It is a junction number, because it is equal to n+sod(n) for n = 125302691 and 125302700.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (125302729) 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, 224682 + ... + 225238.
Almost surely, 2125302720 is an apocalyptic number.
125302720 is a gapful number since it is divisible by the number (10) 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 125302720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161574480).
125302720 is an abundant number, since it is smaller than the sum of its proper divisors (197846240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
125302720 is a wasteful number, since it uses less digits than its factorization.
125302720 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 630 (or 620 counting only the distinct ones).
The product of its (nonzero) digits is 840, while the sum is 22.
The square root of 125302720 is about 11193.8697508949. The cubic root of 125302720 is about 500.4033012754.
The spelling of 125302720 in words is "one hundred twenty-five million, three hundred two thousand, seven hundred twenty".
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