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26052690 = 235868423
BaseRepresentation
bin110001101100…
…0100001010010
31211000121120110
41203120201102
523132141230
62330222150
7434305236
oct143304122
954017513
1026052690
1113784854
128884956
1355223c1
1436625c6
1524494b0
hex18d8852

26052690 has 16 divisors (see below), whose sum is σ = 62526528. Its totient is φ = 6947376.

The previous prime is 26052683. The next prime is 26052707. The reversal of 26052690 is 9625062.

It is a super-2 number, since 2×260526902 = 1357485312472200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 868423 = 26052690 / (2 + 6 + 0 + 5 + 2 + 6 + 9 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434182 + ... + 434241.

It is an arithmetic number, because the mean of its divisors is an integer number (3907908).

Almost surely, 226052690 is an apocalyptic number.

26052690 is an abundant number, since it is smaller than the sum of its proper divisors (36473838).

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

26052690 is a wasteful number, since it uses less digits than its factorization.

26052690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868433.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 26052690 is about 5104.1835782033. The cubic root of 26052690 is about 296.4495922163.

The spelling of 26052690 in words is "twenty-six million, fifty-two thousand, six hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 868423 1736846 2605269 4342115 5210538 8684230 13026345 26052690