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14303431 = 313731237
BaseRepresentation
bin110110100100…
…000011000111
3222220200121201
4312210003013
512130202211
61230323331
7232401652
oct66440307
928820551
1014303431
11808a41a
124959547
132c6a58c
141c84899
1513c80c1
hexda40c7

14303431 has 8 divisors (see below), whose sum is σ = 14816384. Its totient is φ = 13793760.

The previous prime is 14303411. The next prime is 14303461. The reversal of 14303431 is 13430341.

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

It is not a de Polignac number, because 14303431 - 211 = 14301383 is a prime.

It is a super-2 number, since 2×143034312 = 409176276743522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14303399 and 14303408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14303411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10945 + ... + 12181.

It is an arithmetic number, because the mean of its divisors is an integer number (1852048).

Almost surely, 214303431 is an apocalyptic number.

14303431 is a deficient number, since it is larger than the sum of its proper divisors (512953).

14303431 is a wasteful number, since it uses less digits than its factorization.

14303431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1641.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 14303431 is about 3781.9877048980. The cubic root of 14303431 is about 242.7430149698.

Adding to 14303431 its reverse (13430341), we get a palindrome (27733772).

The spelling of 14303431 in words is "fourteen million, three hundred three thousand, four hundred thirty-one".

Divisors: 1 31 373 1237 11563 38347 461401 14303431