Search a number
-
+
1427444031 = 31336601129
BaseRepresentation
bin101010100010101…
…0001000100111111
310200110222200002110
41111011101010333
510410411202111
6353351025103
750242034256
oct12505210477
93613880073
101427444031
11672833912
1233a06b193
1319996a250
14d781779d
15854b65a6
hex5515113f

1427444031 has 8 divisors (see below), whose sum is σ = 2049663280. Its totient is φ = 878427072.

The previous prime is 1427444021. The next prime is 1427444047. The reversal of 1427444031 is 1304447241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1427444031 - 26 = 1427443967 is a prime.

It is a super-2 number, since 2×14274440312 = 4075192923275057922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1427444031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1427444021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18300526 + ... + 18300603.

It is an arithmetic number, because the mean of its divisors is an integer number (256207910).

Almost surely, 21427444031 is an apocalyptic number.

1427444031 is a deficient number, since it is larger than the sum of its proper divisors (622219249).

1427444031 is a wasteful number, since it uses less digits than its factorization.

1427444031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36601145.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 1427444031 is about 37781.5302892829. The cubic root of 1427444031 is about 1125.9515323435.

The spelling of 1427444031 in words is "one billion, four hundred twenty-seven million, four hundred forty-four thousand, thirty-one".

Divisors: 1 3 13 39 36601129 109803387 475814677 1427444031