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14948221 = 107139703
BaseRepresentation
bin111001000001…
…011101111101
31001010110002211
4321001131331
512311320341
61252220421
7241025551
oct71013575
931113084
1014948221
11848a902
12500a711
133134c02
141db1861
1514a4181
hexe4177d

14948221 has 4 divisors (see below), whose sum is σ = 15088032. Its totient is φ = 14808412.

The previous prime is 14948191. The next prime is 14948237. The reversal of 14948221 is 12284941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 14948221 - 223 = 6559613 is a prime.

It is a super-2 number, since 2×149482212 = 446898622129682, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14948251) 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, 69745 + ... + 69958.

It is an arithmetic number, because the mean of its divisors is an integer number (3772008).

Almost surely, 214948221 is an apocalyptic number.

It is an amenable number.

14948221 is a deficient number, since it is larger than the sum of its proper divisors (139811).

14948221 is a wasteful number, since it uses less digits than its factorization.

14948221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139810.

The product of its digits is 4608, while the sum is 31.

The square root of 14948221 is about 3866.2929273401. The cubic root of 14948221 is about 246.3371069610.

The spelling of 14948221 in words is "fourteen million, nine hundred forty-eight thousand, two hundred twenty-one".

Divisors: 1 107 139703 14948221