Base | Representation |
---|---|
bin | 101111101101… |
… | …0000011001101 |
3 | 1202001122210102 |
4 | 1133122003031 |
5 | 22400313011 |
6 | 2252020445 |
7 | 422404364 |
oct | 137320315 |
9 | 52048712 |
10 | 25010381 |
11 | 13132740 |
12 | 8461725 |
13 | 5248b56 |
14 | 34707db |
15 | 22e073b |
hex | 17da0cd |
25010381 has 4 divisors (see below), whose sum is σ = 27284064. Its totient is φ = 22736700.
The previous prime is 25010353. The next prime is 25010413. The reversal of 25010381 is 18301052.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 25010381 - 26 = 25010317 is a prime.
It is a super-2 number, since 2×250103812 = 1251038315530322, which contains 22 as substring.
It is an alternating number because its digits alternate between even and odd.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (25010351) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1136825 + ... + 1136846.
It is an arithmetic number, because the mean of its divisors is an integer number (6821016).
Almost surely, 225010381 is an apocalyptic number.
It is an amenable number.
25010381 is a deficient number, since it is larger than the sum of its proper divisors (2273683).
25010381 is a wasteful number, since it uses less digits than its factorization.
25010381 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2273682.
The product of its (nonzero) digits is 240, while the sum is 20.
The square root of 25010381 is about 5001.0379922572. The cubic root of 25010381 is about 292.4422405249.
The spelling of 25010381 in words is "twenty-five million, ten thousand, three hundred eighty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.000 sec. • engine limits •