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12841157 = 71834451
BaseRepresentation
bin110000111111…
…000011000101
3220011101202102
4300333003011
511241404112
61135121445
7214101530
oct60770305
926141672
1012841157
11728082a
124373285
132877b24
1419c3a17
1511d9bc2
hexc3f0c5

12841157 has 4 divisors (see below), whose sum is σ = 14675616. Its totient is φ = 11006700.

The previous prime is 12841139. The next prime is 12841193. The reversal of 12841157 is 75114821.

12841157 is digitally balanced in base 2 and base 3, because in such bases 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.

It is a cyclic number.

It is not a de Polignac number, because 12841157 - 210 = 12840133 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 (12841057) 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, 917219 + ... + 917232.

It is an arithmetic number, because the mean of its divisors is an integer number (3668904).

Almost surely, 212841157 is an apocalyptic number.

It is an amenable number.

12841157 is a deficient number, since it is larger than the sum of its proper divisors (1834459).

12841157 is an equidigital number, since it uses as much as digits as its factorization.

12841157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1834458.

The product of its digits is 2240, while the sum is 29.

The square root of 12841157 is about 3583.4560134038. The cubic root of 12841157 is about 234.1718670651.

Adding to 12841157 its reverse (75114821), we get a palindrome (87955978).

The spelling of 12841157 in words is "twelve million, eight hundred forty-one thousand, one hundred fifty-seven".

Divisors: 1 7 1834451 12841157