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1222414142 = 2611207071
BaseRepresentation
bin100100011011100…
…1000111100111110
310011012012001221212
41020313020330332
510000414223032
6321144324422
742202230425
oct11067107476
93135161855
101222414142
11578025924
122a1473712
131663416a1
14b84c62bc
15724b6bb2
hex48dc8f3e

1222414142 has 4 divisors (see below), whose sum is σ = 1833621216. Its totient is φ = 611207070.

The previous prime is 1222414133. The next prime is 1222414159. The reversal of 1222414142 is 2414142221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2414142221 = 13151183571.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305603534 + ... + 305603537.

It is an arithmetic number, because the mean of its divisors is an integer number (458405304).

Almost surely, 21222414142 is an apocalyptic number.

1222414142 is a deficient number, since it is larger than the sum of its proper divisors (611207074).

1222414142 is an equidigital number, since it uses as much as digits as its factorization.

1222414142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611207073.

The product of its digits is 1024, while the sum is 23.

The square root of 1222414142 is about 34963.0396561855. The cubic root of 1222414142 is about 1069.2340697311.

Adding to 1222414142 its reverse (2414142221), we get a palindrome (3636556363).

The spelling of 1222414142 in words is "one billion, two hundred twenty-two million, four hundred fourteen thousand, one hundred forty-two".

Divisors: 1 2 611207071 1222414142