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31344061 = 75578039
BaseRepresentation
bin111011110010…
…0010110111101
32011222102222011
41313210112331
531011002221
63035451221
7530264050
oct167442675
964872864
1031344061
1116769291
12a5b6b11
1366559a8
14423ca97
152b421e1
hex1de45bd

31344061 has 8 divisors (see below), whose sum is σ = 35890560. Its totient is φ = 26814768.

The previous prime is 31344059. The next prime is 31344067. The reversal of 31344061 is 16044313.

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 31344061 - 21 = 31344059 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 (31344067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121 + ... + 7918.

It is an arithmetic number, because the mean of its divisors is an integer number (4486320).

Almost surely, 231344061 is an apocalyptic number.

It is an amenable number.

31344061 is a deficient number, since it is larger than the sum of its proper divisors (4546499).

31344061 is an equidigital number, since it uses as much as digits as its factorization.

31344061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8603.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 31344061 is about 5598.5766941250. The cubic root of 31344061 is about 315.2959710863.

Adding to 31344061 its reverse (16044313), we get a palindrome (47388374).

The spelling of 31344061 in words is "thirty-one million, three hundred forty-four thousand, sixty-one".

Divisors: 1 7 557 3899 8039 56273 4477723 31344061