Search a number
-
+
25705316 = 2271370619
BaseRepresentation
bin110001000001…
…1101101100100
31210100222001202
41202003231210
523040032231
62314542032
7431330420
oct142035544
953328052
1025705316
111356786a
128737918
135430260
1435b1b80
1523cb5cb
hex1883b64

25705316 has 24 divisors (see below), whose sum is σ = 55366080. Its totient is φ = 10168992.

The previous prime is 25705313. The next prime is 25705333. The reversal of 25705316 is 61350752.

It is not an unprimeable number, because it can be changed into a prime (25705313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34946 + ... + 35673.

It is an arithmetic number, because the mean of its divisors is an integer number (2306920).

Almost surely, 225705316 is an apocalyptic number.

25705316 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

25705316 is an abundant number, since it is smaller than the sum of its proper divisors (29660764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25705316 is a wasteful number, since it uses less digits than its factorization.

25705316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70643 (or 70641 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 25705316 is about 5070.0410254750. The cubic root of 25705316 is about 295.1261205433.

The spelling of 25705316 in words is "twenty-five million, seven hundred five thousand, three hundred sixteen".

Divisors: 1 2 4 7 13 14 26 28 52 91 182 364 70619 141238 282476 494333 918047 988666 1836094 1977332 3672188 6426329 12852658 25705316