Search a number
-
+
205981482 = 2374904321
BaseRepresentation
bin11000100011100…
…00011100101010
3112100120221110210
430101300130222
5410212401412
632234521550
75050546050
oct1421603452
9470527423
10205981482
11a62a8a33
1258b962b6
133389ca45
141d4dc1d0
151313b83c
hexc47072a

205981482 has 16 divisors (see below), whose sum is σ = 470814912. Its totient is φ = 58851840.

The previous prime is 205981471. The next prime is 205981487. The reversal of 205981482 is 284189502.

It is a self number, because there is not a number n which added to its sum of digits gives 205981482.

It is not an unprimeable number, because it can be changed into a prime (205981487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2452119 + ... + 2452202.

It is an arithmetic number, because the mean of its divisors is an integer number (29425932).

Almost surely, 2205981482 is an apocalyptic number.

205981482 is an abundant number, since it is smaller than the sum of its proper divisors (264833430).

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

205981482 is a wasteful number, since it uses less digits than its factorization.

205981482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4904333.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 205981482 is about 14352.0549748111. The cubic root of 205981482 is about 590.5763610348.

The spelling of 205981482 in words is "two hundred five million, nine hundred eighty-one thousand, four hundred eighty-two".

Divisors: 1 2 3 6 7 14 21 42 4904321 9808642 14712963 29425926 34330247 68660494 102990741 205981482