Search a number
-
+
25713982 = 274739079
BaseRepresentation
bin110001000010…
…1110100111110
31210101101221201
41202011310332
523040321412
62315050114
7431364610
oct142056476
953341851
1025713982
1113573328
12874093a
135434198
1435b4db0
1523cde57
hex1885d3e

25713982 has 16 divisors (see below), whose sum is σ = 45020160. Its totient is φ = 10785528.

The previous prime is 25713967. The next prime is 25713983. The reversal of 25713982 is 28931752.

It is a super-2 number, since 2×257139822 = 1322417740592648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25713983) 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, 18882 + ... + 20197.

It is an arithmetic number, because the mean of its divisors is an integer number (2813760).

Almost surely, 225713982 is an apocalyptic number.

25713982 is a deficient number, since it is larger than the sum of its proper divisors (19306178).

25713982 is a wasteful number, since it uses less digits than its factorization.

25713982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39135.

The product of its digits is 30240, while the sum is 37.

The square root of 25713982 is about 5070.8955816502. The cubic root of 25713982 is about 295.1592819797.

The spelling of 25713982 in words is "twenty-five million, seven hundred thirteen thousand, nine hundred eighty-two".

Divisors: 1 2 7 14 47 94 329 658 39079 78158 273553 547106 1836713 3673426 12856991 25713982