Base | Representation |
---|---|
bin | 1010100010111010… |
… | …0010011100111001 |
3 | 21022021121010012100 |
4 | 2220232202130321 |
5 | 21244134201100 |
6 | 1144521134013 |
7 | 130102110444 |
oct | 25056423471 |
9 | 7267533170 |
10 | 2830772025 |
11 | 1222995a14 |
12 | 67002a309 |
13 | 361612743 |
14 | 1cbd5465b |
15 | 1187b7400 |
hex | a8ba2739 |
2830772025 has 27 divisors (see below), whose sum is σ = 5071657071. Its totient is φ = 1509319440.
The previous prime is 2830772023. The next prime is 2830772047. The reversal of 2830772025 is 5202770382.
It is a happy number.
The square root of 2830772025 is 53205.
It is a perfect power (a square), and thus also a powerful number.
2830772025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in only one way, i.e., 1019077929 + 1811694096 = 31923^2 + 42564^2 .
It is not a de Polignac number, because 2830772025 - 21 = 2830772023 is a prime.
It is not an unprimeable number, because it can be changed into a prime (2830772023) by changing a digit.
It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 796302 + ... + 799848.
Almost surely, 22830772025 is an apocalyptic number.
2830772025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
2830772025 is the 53205-th square number.
2830772025 is the 26603-rd centered octagonal number.
It is an amenable number.
2830772025 is a deficient number, since it is larger than the sum of its proper divisors (2240885046).
2830772025 is an frugal number, since it uses more digits than its factorization.
2830772025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7110 (or 3555 counting only the distinct ones).
The product of its (nonzero) digits is 47040, while the sum is 36.
The cubic root of 2830772025 is about 1414.6042711299.
Multiplying 2830772025 by its sum of digits (36), we get a square (101907792900 = 3192302).
The spelling of 2830772025 in words is "two billion, eight hundred thirty million, seven hundred seventy-two thousand, twenty-five".
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