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25682231 = 151170081
BaseRepresentation
bin110000111111…
…0000100110111
31210022210101202
41201332010313
523033312411
62314243115
7431203211
oct141760467
953283352
1025682231
1113551493
12872649b
1354228b3
1435a75b1
1523c483b
hex187e137

25682231 has 4 divisors (see below), whose sum is σ = 25852464. Its totient is φ = 25512000.

The previous prime is 25682227. The next prime is 25682269. The reversal of 25682231 is 13228652.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25682231 - 22 = 25682227 is a prime.

It is a super-2 number, since 2×256822312 = 1319153978274722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25682194 and 25682203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25682201) 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, 84890 + ... + 85191.

It is an arithmetic number, because the mean of its divisors is an integer number (6463116).

Almost surely, 225682231 is an apocalyptic number.

25682231 is a deficient number, since it is larger than the sum of its proper divisors (170233).

25682231 is a wasteful number, since it uses less digits than its factorization.

25682231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170232.

The product of its digits is 5760, while the sum is 29.

The square root of 25682231 is about 5067.7639053137. The cubic root of 25682231 is about 295.0377467738.

The spelling of 25682231 in words is "twenty-five million, six hundred eighty-two thousand, two hundred thirty-one".

Divisors: 1 151 170081 25682231