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26989682 = 227494909
BaseRepresentation
bin110011011110…
…1010001110010
31212210012212212
41212331101302
523402132212
62402252122
7445260056
oct146752162
955705785
1026989682
1114264825
129057042
13578ca35
143827c66
152581e22
hex19bd472

26989682 has 8 divisors (see below), whose sum is σ = 40507500. Its totient is φ = 13487184.

The previous prime is 26989679. The next prime is 26989717. The reversal of 26989682 is 28698962.

It can be written as a sum of positive squares in 2 ways, for example, as 26512201 + 477481 = 5149^2 + 691^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×269896822 = 1456885868922248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26989682.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3044 + ... + 7952.

Almost surely, 226989682 is an apocalyptic number.

26989682 is a deficient number, since it is larger than the sum of its proper divisors (13517818).

26989682 is a wasteful number, since it uses less digits than its factorization.

26989682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7660.

The product of its digits is 746496, while the sum is 50.

The square root of 26989682 is about 5195.1594778216. The cubic root of 26989682 is about 299.9617803162.

The spelling of 26989682 in words is "twenty-six million, nine hundred eighty-nine thousand, six hundred eighty-two".

Divisors: 1 2 2749 4909 5498 9818 13494841 26989682