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1423231663 = 7892284481
BaseRepresentation
bin101010011010100…
…1100101010101111
310200012001122210211
41110311030222233
510403321403123
6353120443251
750161161310
oct12465145257
93605048724
101423231663
11670417017
12338779527
13198b23b19
14d703c607
1584e3340d
hex54d4caaf

1423231663 has 8 divisors (see below), whose sum is σ = 1644827040. Its totient is φ = 1206205440.

The previous prime is 1423231657. The next prime is 1423231679. The reversal of 1423231663 is 3661323241.

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 1423231663 - 29 = 1423231151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423231633) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 1141618 + ... + 1142863.

It is an arithmetic number, because the mean of its divisors is an integer number (205603380).

Almost surely, 21423231663 is an apocalyptic number.

1423231663 is a deficient number, since it is larger than the sum of its proper divisors (221595377).

1423231663 is an equidigital number, since it uses as much as digits as its factorization.

1423231663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2284577.

The product of its digits is 15552, while the sum is 31.

The square root of 1423231663 is about 37725.7427097201. The cubic root of 1423231663 is about 1124.8428851863.

The spelling of 1423231663 in words is "one billion, four hundred twenty-three million, two hundred thirty-one thousand, six hundred sixty-three".

Divisors: 1 7 89 623 2284481 15991367 203318809 1423231663