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26241312740 = 2251312065637
BaseRepresentation
bin11000011100000110…
…101010011111100100
32111201210122210202212
4120130012222133210
5412220234001430
620015522222552
71616166322646
oct303406523744
974653583685
1026241312740
111014659a725
1251041b4a58
132622763bb6
1413ad18c896
15a38b6db95
hex61c1aa7e4

26241312740 has 12 divisors (see below), whose sum is σ = 55106756796. Its totient is φ = 10496525088.

The previous prime is 26241312739. The next prime is 26241312749. The reversal of 26241312740 is 4721314262.

It can be written as a sum of positive squares in 2 ways, for example, as 6050039524 + 20191273216 = 77782^2 + 142096^2 .

It is a junction number, because it is equal to n+sod(n) for n = 26241312697 and 26241312706.

It is not an unprimeable number, because it can be changed into a prime (26241312749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 656032799 + ... + 656032838.

It is an arithmetic number, because the mean of its divisors is an integer number (4592229733).

Almost surely, 226241312740 is an apocalyptic number.

26241312740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26241312740 is an abundant number, since it is smaller than the sum of its proper divisors (28865444056).

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

26241312740 is a wasteful number, since it uses less digits than its factorization.

26241312740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312065646 (or 1312065644 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The spelling of 26241312740 in words is "twenty-six billion, two hundred forty-one million, three hundred twelve thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 1312065637 2624131274 5248262548 6560328185 13120656370 26241312740