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25331030 = 2531411993
BaseRepresentation
bin110000010100…
…0010101010110
31202122221122022
41200220111112
522441043110
62302533142
7425211254
oct140502526
952587568
1025331030
111333163a
1285971b2
13532ba9a
1435155d4
152355755
hex1828556

25331030 has 32 divisors (see below), whose sum is σ = 48238848. Its totient is φ = 9561600.

The previous prime is 25331029. The next prime is 25331063. The reversal of 25331030 is 3013352.

It is a super-2 number, since 2×253310302 = 1283322161721800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11714 + ... + 13706.

It is an arithmetic number, because the mean of its divisors is an integer number (1507464).

Almost surely, 225331030 is an apocalyptic number.

25331030 is a deficient number, since it is larger than the sum of its proper divisors (22907818).

25331030 is a wasteful number, since it uses less digits than its factorization.

25331030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2072.

The product of its (nonzero) digits is 270, while the sum is 17.

The square root of 25331030 is about 5032.9941386813. The cubic root of 25331030 is about 293.6867025227.

Adding to 25331030 its reverse (3013352), we get a palindrome (28344382).

The spelling of 25331030 in words is "twenty-five million, three hundred thirty-one thousand, thirty".

Divisors: 1 2 5 10 31 41 62 82 155 205 310 410 1271 1993 2542 3986 6355 9965 12710 19930 61783 81713 123566 163426 308915 408565 617830 817130 2533103 5066206 12665515 25331030