Search a number
-
+
28602486 = 23211197603
BaseRepresentation
bin110110100011…
…1000001110110
31222211011020100
41231013001312
524310234421
62501014530
7465055113
oct155070166
958734210
1028602486
1115166520
1296b4446
135c05b63
143b2790a
15279ec26
hex1b47076

28602486 has 48 divisors (see below), whose sum is σ = 71173440. Its totient is φ = 8210160.

The previous prime is 28602481. The next prime is 28602499. The reversal of 28602486 is 68420682.

28602486 is a `hidden beast` number, since 2 + 8 + 602 + 48 + 6 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 28602486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28602481) 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 23 ways as a sum of consecutive naturals, for example, 40 + ... + 7563.

It is an arithmetic number, because the mean of its divisors is an integer number (1482780).

Almost surely, 228602486 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28602486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35586720).

28602486 is an abundant number, since it is smaller than the sum of its proper divisors (42570954).

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

28602486 is a wasteful number, since it uses less digits than its factorization.

28602486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7641 (or 7638 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 28602486 is about 5348.1292056195. The cubic root of 28602486 is about 305.8214388202.

The spelling of 28602486 in words is "twenty-eight million, six hundred two thousand, four hundred eighty-six".

Divisors: 1 2 3 6 9 11 18 19 22 33 38 57 66 99 114 171 198 209 342 418 627 1254 1881 3762 7603 15206 22809 45618 68427 83633 136854 144457 167266 250899 288914 433371 501798 752697 866742 1300113 1505394 1589027 2600226 3178054 4767081 9534162 14301243 28602486