Search a number
-
+
26997292 = 22717431319
BaseRepresentation
bin110011011111…
…1001000101100
31212210121022201
41212333020230
523402403132
62402351244
7445321210
oct146771054
955717281
1026997292
111426a513
12905b524
13579333a
14382a940
1525842e7
hex19bf22c

26997292 has 48 divisors (see below), whose sum is σ = 58544640. Its totient is φ = 10628352.

The previous prime is 26997281. The next prime is 26997293. The reversal of 26997292 is 29279962.

It is not an unprimeable number, because it can be changed into a prime (26997293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19809 + ... + 21127.

It is an arithmetic number, because the mean of its divisors is an integer number (1219680).

Almost surely, 226997292 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 26997292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29272320).

26997292 is an abundant number, since it is smaller than the sum of its proper divisors (31547348).

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

26997292 is a wasteful number, since it uses less digits than its factorization.

26997292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390 (or 1388 counting only the distinct ones).

The product of its digits is 244944, while the sum is 46.

The square root of 26997292 is about 5195.8918387511. The cubic root of 26997292 is about 299.9899700350.

The spelling of 26997292 in words is "twenty-six million, nine hundred ninety-seven thousand, two hundred ninety-two".

Divisors: 1 2 4 7 14 17 28 34 43 68 86 119 172 238 301 476 602 731 1204 1319 1462 2638 2924 5117 5276 9233 10234 18466 20468 22423 36932 44846 56717 89692 113434 156961 226868 313922 397019 627844 794038 964189 1588076 1928378 3856756 6749323 13498646 26997292