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1214442630 = 232513493807
BaseRepresentation
bin100100001100010…
…1110110010000110
310010122012002002200
41020120232302012
54441344131010
6320301415330
742044410032
oct11030566206
93118162080
101214442630
115735807a5
1229a86a546
131647b020b
14b740d1c2
157193ecc0
hex4862ec86

1214442630 has 24 divisors (see below), whose sum is σ = 3157551072. Its totient is φ = 323851344.

The previous prime is 1214442623. The next prime is 1214442631. The reversal of 1214442630 is 362444121.

It is a happy number.

1214442630 is a `hidden beast` number, since 1 + 21 + 4 + 4 + 4 + 2 + 630 = 666.

It is a super-2 number, since 2×12144426302 = 2949741803122633800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1214442594 and 1214442603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214442631) 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 11 ways as a sum of consecutive naturals, for example, 6746814 + ... + 6746993.

It is an arithmetic number, because the mean of its divisors is an integer number (131564628).

Almost surely, 21214442630 is an apocalyptic number.

1214442630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1214442630 is an abundant number, since it is smaller than the sum of its proper divisors (1943108442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1214442630 is a wasteful number, since it uses less digits than its factorization.

1214442630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13493820 (or 13493817 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 1214442630 is about 34848.8540701125. The cubic root of 1214442630 is about 1066.9047972029.

Adding to 1214442630 its reverse (362444121), we get a palindrome (1576886751).

The spelling of 1214442630 in words is "one billion, two hundred fourteen million, four hundred forty-two thousand, six hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 13493807 26987614 40481421 67469035 80962842 121444263 134938070 202407105 242888526 404814210 607221315 1214442630