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26245129 = 4721092
BaseRepresentation
bin110010000011…
…1100000001001
31211101101112211
41210013200021
523204321004
62334305121
7436036261
oct144074011
954341484
1026245129
11138a6399
1289581a1
13558bb81
1436b27a1
152486504
hex1907809

26245129 has 9 divisors (see below), whose sum is σ = 27063687. Its totient is φ = 25451064.

The previous prime is 26245111. The next prime is 26245133. The reversal of 26245129 is 92154262.

The square root of 26245129 is 5123.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 18292729 + 7952400 = 4277^2 + 2820^2 .

It is not a de Polignac number, because 26245129 - 219 = 25720841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26245129.

It is not an unprimeable number, because it can be changed into a prime (26245169) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 240727 + ... + 240835.

Almost surely, 226245129 is an apocalyptic number.

26245129 is the 5123-rd square number.

26245129 is the 2562-nd centered octagonal number.

It is an amenable number.

26245129 is a deficient number, since it is larger than the sum of its proper divisors (818558).

26245129 is an frugal number, since it uses more digits than its factorization.

26245129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312 (or 156 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The cubic root of 26245129 is about 297.1777137430.

The spelling of 26245129 in words is "twenty-six million, two hundred forty-five thousand, one hundred twenty-nine".

Divisors: 1 47 109 2209 5123 11881 240781 558407 26245129