Search a number
-
+
1222410887 = 19122372861
BaseRepresentation
bin100100011011100…
…1000001010000111
310011012011220111022
41020313020022013
510000414122022
6321144301355
742202215065
oct11067101207
93135156438
101222410887
11578023435
122a147185b
13166340069
14b84c5035
15724b5c42
hex48dc8287

1222410887 has 8 divisors (see below), whose sum is σ = 1229789952. Its totient is φ = 1215042400.

The previous prime is 1222410883. The next prime is 1222410919. The reversal of 1222410887 is 7880142221.

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 1222410887 - 22 = 1222410883 is a prime.

It is a super-2 number, since 2×12224108872 = 2988576753312253538, 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 (1222410881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425837 + ... + 428697.

It is an arithmetic number, because the mean of its divisors is an integer number (153723744).

Almost surely, 21222410887 is an apocalyptic number.

1222410887 is a deficient number, since it is larger than the sum of its proper divisors (7379065).

1222410887 is a wasteful number, since it uses less digits than its factorization.

1222410887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5289.

The product of its (nonzero) digits is 14336, while the sum is 35.

The square root of 1222410887 is about 34962.9931069981. The cubic root of 1222410887 is about 1069.2331206911.

The spelling of 1222410887 in words is "one billion, two hundred twenty-two million, four hundred ten thousand, eight hundred eighty-seven".

Divisors: 1 191 2237 2861 427267 546451 6400057 1222410887