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26142405707 = 1117139798961
BaseRepresentation
bin11000010110001101…
…010111010001001011
32111110220112210211102
4120112031113101023
5412014423440312
620002030252015
71613555532155
oct302615272113
974426483742
1026142405707
11100a5785380
12509705700b
132608113a22
14139dda3ad5
15a30132ec2
hex61635744b

26142405707 has 8 divisors (see below), whose sum is σ = 30196575792. Its totient is φ = 22367833600.

The previous prime is 26142405703. The next prime is 26142405713. The reversal of 26142405707 is 70750424162.

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

It is a cyclic number.

It is not a de Polignac number, because 26142405707 - 22 = 26142405703 is a prime.

It is a super-2 number, since 2×261424057072 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26142405703) 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 7 ways as a sum of consecutive naturals, for example, 69899294 + ... + 69899667.

It is an arithmetic number, because the mean of its divisors is an integer number (3774571974).

Almost surely, 226142405707 is an apocalyptic number.

26142405707 is a deficient number, since it is larger than the sum of its proper divisors (4054170085).

26142405707 is a wasteful number, since it uses less digits than its factorization.

26142405707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139798989.

The product of its (nonzero) digits is 94080, while the sum is 38.

Adding to 26142405707 its reverse (70750424162), we get a palindrome (96892829869).

The spelling of 26142405707 in words is "twenty-six billion, one hundred forty-two million, four hundred five thousand, seven hundred seven".

Divisors: 1 11 17 187 139798961 1537788571 2376582337 26142405707