Search a number
-
+
25020993 = 335323627
BaseRepresentation
bin101111101110…
…0101001000001
31202002012100110
41133130221001
522401132433
62252141533
7422450334
oct137345101
952065313
1025020993
111313a708
1284678a9
13525092a
14347461b
1522e3963
hex17dca41

25020993 has 8 divisors (see below), whose sum is σ = 33457248. Its totient is φ = 16632704.

The previous prime is 25020979. The next prime is 25021019. The reversal of 25020993 is 39902052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25020993 - 24 = 25020977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25020993.

It is not an unprimeable number, because it can be changed into a prime (25020943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10755 + ... + 12872.

It is an arithmetic number, because the mean of its divisors is an integer number (4182156).

Almost surely, 225020993 is an apocalyptic number.

It is an amenable number.

25020993 is a deficient number, since it is larger than the sum of its proper divisors (8436255).

25020993 is a wasteful number, since it uses less digits than its factorization.

25020993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23983.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 25020993 is about 5002.0988594789. The cubic root of 25020993 is about 292.4835961288.

The spelling of 25020993 in words is "twenty-five million, twenty thousand, nine hundred ninety-three".

Divisors: 1 3 353 1059 23627 70881 8340331 25020993