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12145301 = 71735043
BaseRepresentation
bin101110010101…
…001010010101
3211212001012222
4232111022111
511102122201
61112152125
7205143020
oct56251225
924761188
1012145301
116945a43
124098645
13269318c
1418821b7
1510ed91b
hexb95295

12145301 has 4 divisors (see below), whose sum is σ = 13880352. Its totient is φ = 10410252.

The previous prime is 12145279. The next prime is 12145303. The reversal of 12145301 is 10354121.

12145301 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10354121 = 28336587.

It is a cyclic number.

It is not a de Polignac number, because 12145301 - 214 = 12128917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12145301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12145303) 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, 867515 + ... + 867528.

It is an arithmetic number, because the mean of its divisors is an integer number (3470088).

Almost surely, 212145301 is an apocalyptic number.

It is an amenable number.

12145301 is a deficient number, since it is larger than the sum of its proper divisors (1735051).

12145301 is an equidigital number, since it uses as much as digits as its factorization.

12145301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1735050.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 12145301 is about 3485.0109038567. The cubic root of 12145301 is about 229.8631889581.

Adding to 12145301 its reverse (10354121), we get a palindrome (22499422).

The spelling of 12145301 in words is "twelve million, one hundred forty-five thousand, three hundred one".

Divisors: 1 7 1735043 12145301