Search a number
-
+
27626768 = 2413217601
BaseRepresentation
bin110100101100…
…0110100010000
31220222120210122
41221120310100
524033024033
62424045412
7453552341
oct151306420
956876718
1027626768
111465a444
129303868
135953a00
1439520c8
15265aa98
hex1a58d10

27626768 has 60 divisors (see below), whose sum is σ = 61472628. Its totient is φ = 11980800.

The previous prime is 27626759. The next prime is 27626771. The reversal of 27626768 is 86762672.

It can be written as a sum of positive squares in 6 ways, for example, as 85264 + 27541504 = 292^2 + 5248^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45668 + ... + 46268.

Almost surely, 227626768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27626768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30736314).

27626768 is an abundant number, since it is smaller than the sum of its proper divisors (33845860).

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

27626768 is a wasteful number, since it uses less digits than its factorization.

27626768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652 (or 633 counting only the distinct ones).

The product of its digits is 338688, while the sum is 44.

The square root of 27626768 is about 5256.1171980845. The cubic root of 27626768 is about 302.3036286696.

The spelling of 27626768 in words is "twenty-seven million, six hundred twenty-six thousand, seven hundred sixty-eight".

Divisors: 1 2 4 8 13 16 17 26 34 52 68 104 136 169 208 221 272 338 442 601 676 884 1202 1352 1768 2404 2704 2873 3536 4808 5746 7813 9616 10217 11492 15626 20434 22984 31252 40868 45968 62504 81736 101569 125008 132821 163472 203138 265642 406276 531284 812552 1062568 1625104 1726673 2125136 3453346 6906692 13813384 27626768