Search a number
-
+
1222985327 = 11310822879
BaseRepresentation
bin100100011100101…
…0100011001101111
310011020021002110212
41020321110121233
510001041012302
6321204453035
742210126614
oct11071243157
93136232425
101222985327
11578385a83
122a16aa17b
131664b1675
14b85d450b
157257b052
hex48e5466f

1222985327 has 4 divisors (see below), whose sum is σ = 1233808320. Its totient is φ = 1212162336.

The previous prime is 1222985311. The next prime is 1222985347. The reversal of 1222985327 is 7235892221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7235892221 = 16194469359.

It is a cyclic number.

It is not a de Polignac number, because 1222985327 - 24 = 1222985311 is a prime.

It is a super-2 number, since 2×12229853272 = 2991386220114593858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222985347) 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, 5411327 + ... + 5411552.

It is an arithmetic number, because the mean of its divisors is an integer number (308452080).

Almost surely, 21222985327 is an apocalyptic number.

1222985327 is a deficient number, since it is larger than the sum of its proper divisors (10822993).

1222985327 is a wasteful number, since it uses less digits than its factorization.

1222985327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10822992.

The product of its digits is 120960, while the sum is 41.

The square root of 1222985327 is about 34971.2071138530. The cubic root of 1222985327 is about 1069.4005805020.

The spelling of 1222985327 in words is "one billion, two hundred twenty-two million, nine hundred eighty-five thousand, three hundred twenty-seven".

Divisors: 1 113 10822879 1222985327