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31412441 = 38218221
BaseRepresentation
bin111011111010…
…1000011011001
32012002220202202
41313311003121
531020144231
63041135545
7531000314
oct167650331
965086682
1031412441
11168056a5
12a62a5b5
13667ab58
14425997b
152b575cb
hex1df50d9

31412441 has 4 divisors (see below), whose sum is σ = 31424484. Its totient is φ = 31400400.

The previous prime is 31412431. The next prime is 31412473. The reversal of 31412441 is 14421413.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 28944400 + 2468041 = 5380^2 + 1571^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-31412441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31412431) 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, 290 + ... + 7931.

It is an arithmetic number, because the mean of its divisors is an integer number (7856121).

Almost surely, 231412441 is an apocalyptic number.

It is an amenable number.

31412441 is a deficient number, since it is larger than the sum of its proper divisors (12043).

31412441 is an equidigital number, since it uses as much as digits as its factorization.

31412441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12042.

The product of its digits is 384, while the sum is 20.

The square root of 31412441 is about 5604.6802763405. The cubic root of 31412441 is about 315.5250871023.

Adding to 31412441 its reverse (14421413), we get a palindrome (45833854).

The spelling of 31412441 in words is "thirty-one million, four hundred twelve thousand, four hundred forty-one".

Divisors: 1 3821 8221 31412441