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12313641 = 325715971
BaseRepresentation
bin101110111110…
…010000101001
3212011121010210
4232332100221
511123014031
61115531333
7206443554
oct56762051
925147123
1012313641
116a5046a
124159b49
1327219a2
1418c769b
151133746
hexbbe429

12313641 has 8 divisors (see below), whose sum is σ = 16483104. Its totient is φ = 8176640.

The previous prime is 12313633. The next prime is 12313657. The reversal of 12313641 is 14631321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12313641 - 23 = 12313633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12313141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7215 + ... + 8756.

It is an arithmetic number, because the mean of its divisors is an integer number (2060388).

Almost surely, 212313641 is an apocalyptic number.

It is an amenable number.

12313641 is a deficient number, since it is larger than the sum of its proper divisors (4169463).

12313641 is a wasteful number, since it uses less digits than its factorization.

12313641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16231.

The product of its digits is 432, while the sum is 21.

The square root of 12313641 is about 3509.0797939061. The cubic root of 12313641 is about 230.9203263396.

Adding to 12313641 its reverse (14631321), we get a palindrome (26944962).

The spelling of 12313641 in words is "twelve million, three hundred thirteen thousand, six hundred forty-one".

Divisors: 1 3 257 771 15971 47913 4104547 12313641