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14331421 = 137115527
BaseRepresentation
bin110110101010…
…111000011101
3222222010000101
4312222320131
512132101141
61231101101
7232546366
oct66527035
928863011
1014331421
1180a9455
124971791
132c7a240
141c90b6d
1513d1531
hexdaae1d

14331421 has 8 divisors (see below), whose sum is σ = 15652224. Its totient is φ = 13041840.

The previous prime is 14331409. The next prime is 14331437. The reversal of 14331421 is 12413341.

It is the 1546-th star number.

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 14331421 - 211 = 14329373 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 (14331521) 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, 6841 + ... + 8686.

It is an arithmetic number, because the mean of its divisors is an integer number (1956528).

Almost surely, 214331421 is an apocalyptic number.

It is an amenable number.

14331421 is a deficient number, since it is larger than the sum of its proper divisors (1320803).

14331421 is a wasteful number, since it uses less digits than its factorization.

14331421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15611.

The product of its digits is 288, while the sum is 19.

The square root of 14331421 is about 3785.6863314332. The cubic root of 14331421 is about 242.9012508945.

Adding to 14331421 its reverse (12413341), we get a palindrome (26744762).

The spelling of 14331421 in words is "fourteen million, three hundred thirty-one thousand, four hundred twenty-one".

Divisors: 1 13 71 923 15527 201851 1102417 14331421