Search a number
-
+
12287113855 = 57883311737
BaseRepresentation
bin10110111000101111…
…00111101001111111
31011201022101001111221
423130113213221333
5200131000120410
65351123254211
7613325513242
oct133427475177
934638331457
1012287113855
115235834555
12246ab1a367
13120a7a0193
14847bd9259
154bda864da
hex2dc5e7a7f

12287113855 has 8 divisors (see below), whose sum is σ = 14746454352. Its totient is φ = 9828412608.

The previous prime is 12287113789. The next prime is 12287113877. The reversal of 12287113855 is 55831178221.

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 12287113855 - 211 = 12287111807 is a prime.

It is a super-2 number, since 2×122871138552 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 116454 + ... + 195283.

It is an arithmetic number, because the mean of its divisors is an integer number (1843306794).

Almost surely, 212287113855 is an apocalyptic number.

12287113855 is a deficient number, since it is larger than the sum of its proper divisors (2459340497).

12287113855 is an equidigital number, since it uses as much as digits as its factorization.

12287113855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319625.

The product of its digits is 134400, while the sum is 43.

The spelling of 12287113855 in words is "twelve billion, two hundred eighty-seven million, one hundred thirteen thousand, eight hundred fifty-five".

Divisors: 1 5 7883 39415 311737 1558685 2457422771 12287113855