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26880130031 = 143918679729
BaseRepresentation
bin11001000010001011…
…100011101111101111
32120101022201002100112
4121002023203233233
5420022303130111
620203142250235
71641054223016
oct310213435757
976338632315
1026880130031
11104441505a7
12526212697b
1326c4c00bb1
14142dd5ba7d
15a74ca7e8b
hex6422e3bef

26880130031 has 4 divisors (see below), whose sum is σ = 26898811200. Its totient is φ = 26861448864.

The previous prime is 26880130019. The next prime is 26880130033. The reversal of 26880130031 is 13003108862.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26880130031 - 210 = 26880129007 is a prime.

It is a super-2 number, since 2×268801300312 (a number of 22 digits) contains 22 as substring.

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 26880130031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26880130033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9338426 + ... + 9341303.

It is an arithmetic number, because the mean of its divisors is an integer number (6724702800).

Almost surely, 226880130031 is an apocalyptic number.

26880130031 is a deficient number, since it is larger than the sum of its proper divisors (18681169).

26880130031 is a wasteful number, since it uses less digits than its factorization.

26880130031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18681168.

The product of its (nonzero) digits is 6912, while the sum is 32.

Adding to 26880130031 its reverse (13003108862), we get a palindrome (39883238893).

The spelling of 26880130031 in words is "twenty-six billion, eight hundred eighty million, one hundred thirty thousand, thirty-one".

Divisors: 1 1439 18679729 26880130031