Search a number
-
+
25681282 = 2112106121
BaseRepresentation
bin110000111110…
…1110110000010
31210022202002121
41201331312002
523033300112
62314234454
7431200354
oct141756602
953282077
1025681282
1113550800
128725a2a
135422333
1435a70d4
1523c4407
hex187dd82

25681282 has 12 divisors (see below), whose sum is σ = 42342678. Its totient is φ = 11673200.

The previous prime is 25681273. The next prime is 25681283. The reversal of 25681282 is 28218652.

It can be written as a sum of positive squares in only one way, i.e., 17564481 + 8116801 = 4191^2 + 2849^2 .

It is not an unprimeable number, because it can be changed into a prime (25681283) 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 5 ways as a sum of consecutive naturals, for example, 52819 + ... + 53302.

Almost surely, 225681282 is an apocalyptic number.

25681282 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

25681282 is a deficient number, since it is larger than the sum of its proper divisors (16661396).

25681282 is a wasteful number, since it uses less digits than its factorization.

25681282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106145 (or 106134 counting only the distinct ones).

The product of its digits is 15360, while the sum is 34.

The square root of 25681282 is about 5067.6702734097. The cubic root of 25681282 is about 295.0341126883.

The spelling of 25681282 in words is "twenty-five million, six hundred eighty-one thousand, two hundred eighty-two".

Divisors: 1 2 11 22 121 242 106121 212242 1167331 2334662 12840641 25681282