Search a number
-
+
1268025124181 = 7923053696263
BaseRepresentation
bin10010011100111100001…
…011111110010101010101
311111012222211222110112012
4102130330023332111111
5131233403412433211
62410304523034005
7160416562501154
oct22347413762525
94435884873465
101268025124181
11449848141792
1218590306b905
139276084388a
1445530b4559b
1522eb6c4cd8b
hex1273c2fe555

1268025124181 has 8 divisors (see below), whose sum is σ = 1284133620480. Its totient is φ = 1251918066672.

The previous prime is 1268025124141. The next prime is 1268025124183. The reversal of 1268025124181 is 1814215208621.

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 1268025124181 - 26 = 1268025124117 is a prime.

It is a super-2 number, since 2×12680251241812 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1268025124183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1473056 + ... + 2169318.

It is an arithmetic number, because the mean of its divisors is an integer number (160516702560).

Almost surely, 21268025124181 is an apocalyptic number.

It is an amenable number.

1268025124181 is a deficient number, since it is larger than the sum of its proper divisors (16108496299).

1268025124181 is an equidigital number, since it uses as much as digits as its factorization.

1268025124181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719395.

The product of its (nonzero) digits is 61440, while the sum is 41.

The spelling of 1268025124181 in words is "one trillion, two hundred sixty-eight billion, twenty-five million, one hundred twenty-four thousand, one hundred eighty-one".

Divisors: 1 79 23053 696263 1821187 55004777 16050950939 1268025124181