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13131466 = 261910607
BaseRepresentation
bin110010000101…
…111011001010
3220201010222121
4302011323022
511330201331
61145241454
7216421105
oct62057312
926633877
1013131466
117459957
12449328a
132949cca
141a5b73c
151245c11
hexc85eca

13131466 has 8 divisors (see below), whose sum is σ = 19730880. Its totient is φ = 6554508.

The previous prime is 13131449. The next prime is 13131467. The reversal of 13131466 is 66413131.

It is a happy number.

13131466 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 13131466.

It is not an unprimeable number, because it can be changed into a prime (13131467) 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, 4066 + ... + 6541.

It is an arithmetic number, because the mean of its divisors is an integer number (2466360).

Almost surely, 213131466 is an apocalyptic number.

13131466 is a deficient number, since it is larger than the sum of its proper divisors (6599414).

13131466 is a wasteful number, since it uses less digits than its factorization.

13131466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11228.

The product of its digits is 1296, while the sum is 25.

The square root of 13131466 is about 3623.7364694470. The cubic root of 13131466 is about 235.9234286683.

Adding to 13131466 its reverse (66413131), we get a palindrome (79544597).

The spelling of 13131466 in words is "thirteen million, one hundred thirty-one thousand, four hundred sixty-six".

Divisors: 1 2 619 1238 10607 21214 6565733 13131466