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12251001 = 374313567
BaseRepresentation
bin101110101110…
…111101111001
3212001102012210
4232232331321
511114013001
61114325333
7206063130
oct56567571
925042183
1012251001
116a083a4
124129849
1326cc319
1418ac917
15111edd6
hexbaef79

12251001 has 16 divisors (see below), whose sum is σ = 19103744. Its totient is φ = 6837264.

The previous prime is 12250981. The next prime is 12251011. The reversal of 12251001 is 10015221.

12251001 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12251001 - 25 = 12250969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12251011) 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 15 ways as a sum of consecutive naturals, for example, 5881 + ... + 7686.

It is an arithmetic number, because the mean of its divisors is an integer number (1193984).

Almost surely, 212251001 is an apocalyptic number.

It is an amenable number.

12251001 is a deficient number, since it is larger than the sum of its proper divisors (6852743).

12251001 is a wasteful number, since it uses less digits than its factorization.

12251001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13620.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 12251001 is about 3500.1429970788. The cubic root of 12251001 is about 230.5280934070.

Adding to 12251001 its reverse (10015221), we get a palindrome (22266222).

The spelling of 12251001 in words is "twelve million, two hundred fifty-one thousand, one".

Divisors: 1 3 7 21 43 129 301 903 13567 40701 94969 284907 583381 1750143 4083667 12251001