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2430144431 = 111316994017
BaseRepresentation
bin1001000011011001…
…0000111110101111
320021100202010110022
42100312100332233
514434104110211
61041050232355
7114135613121
oct22066207657
96240663408
102430144431
111037831530
12579a256bb
132c96115b0
14190a69211
15e352cbdb
hex90d90faf

2430144431 has 8 divisors (see below), whose sum is σ = 2854995024. Its totient is φ = 2039281920.

The previous prime is 2430144397. The next prime is 2430144473. The reversal of 2430144431 is 1344410342.

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

It is a de Polignac number, because none of the positive numbers 2k-2430144431 is a prime.

It is a super-2 number, since 2×24301444312 = 11811203911040627522, 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 2430144431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2430144491) 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, 8496866 + ... + 8497151.

It is an arithmetic number, because the mean of its divisors is an integer number (356874378).

Almost surely, 22430144431 is an apocalyptic number.

2430144431 is a deficient number, since it is larger than the sum of its proper divisors (424850593).

2430144431 is a wasteful number, since it uses less digits than its factorization.

2430144431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16994041.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 2430144431 is about 49296.4951188216. The cubic root of 2430144431 is about 1344.4480593970.

Adding to 2430144431 its reverse (1344410342), we get a palindrome (3774554773).

The spelling of 2430144431 in words is "two billion, four hundred thirty million, one hundred forty-four thousand, four hundred thirty-one".

Divisors: 1 11 13 143 16994017 186934187 220922221 2430144431