Base | Representation |
---|---|
bin | 111001100101… |
… | …1010110000001 |
3 | 2002210222001012 |
4 | 1303023112001 |
5 | 30212134100 |
6 | 2555050305 |
7 | 514431212 |
oct | 163132601 |
9 | 62728035 |
10 | 30193025 |
11 | 16052515 |
12 | a140995 |
13 | 6341ac5 |
14 | 401d409 |
15 | 29b6135 |
hex | 1ccb581 |
30193025 has 6 divisors (see below), whose sum is σ = 37439382. Its totient is φ = 24154400.
The previous prime is 30193021. The next prime is 30193027. The reversal of 30193025 is 52039103.
It is a happy number.
It can be written as a sum of positive squares in 3 ways, for example, as 4376464 + 25816561 = 2092^2 + 5081^2 .
It is not a de Polignac number, because 30193025 - 22 = 30193021 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30193021) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 603836 + ... + 603885.
It is an arithmetic number, because the mean of its divisors is an integer number (6239897).
Almost surely, 230193025 is an apocalyptic number.
It is an amenable number.
30193025 is a deficient number, since it is larger than the sum of its proper divisors (7246357).
30193025 is a wasteful number, since it uses less digits than its factorization.
30193025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1207731 (or 1207726 counting only the distinct ones).
The product of its (nonzero) digits is 810, while the sum is 23.
The square root of 30193025 is about 5494.8180133650. The cubic root of 30193025 is about 311.3882414679.
The spelling of 30193025 in words is "thirty million, one hundred ninety-three thousand, twenty-five".
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