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14933021 = 17878413
BaseRepresentation
bin111000111101…
…110000011101
31001002200020212
4320331300131
512310324041
61252022205
7240633335
oct70756035
931080225
1014933021
11847a444
125001965
13312b00c
141daa0c5
15149e8eb
hexe3dc1d

14933021 has 4 divisors (see below), whose sum is σ = 15811452. Its totient is φ = 14054592.

The previous prime is 14933011. The next prime is 14933029. The reversal of 14933021 is 12033941.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10310521 + 4622500 = 3211^2 + 2150^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-14933021 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 (14933029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 439190 + ... + 439223.

It is an arithmetic number, because the mean of its divisors is an integer number (3952863).

Almost surely, 214933021 is an apocalyptic number.

It is an amenable number.

14933021 is a deficient number, since it is larger than the sum of its proper divisors (878431).

14933021 is an equidigital number, since it uses as much as digits as its factorization.

14933021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878430.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 14933021 is about 3864.3267201416. The cubic root of 14933021 is about 246.2535832232.

Adding to 14933021 its reverse (12033941), we get a palindrome (26966962).

The spelling of 14933021 in words is "fourteen million, nine hundred thirty-three thousand, twenty-one".

Divisors: 1 17 878413 14933021