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1313210 = 25131321
BaseRepresentation
bin101000000100110111010
32110201101102
411000212322
5314010320
644051402
714106413
oct5004672
92421342
101313210
118176a8
12533b62
1336c962
1426280a
151ae175
hex1409ba

1313210 has 8 divisors (see below), whose sum is σ = 2363796. Its totient is φ = 525280.

The previous prime is 1313171. The next prime is 1313219. The reversal of 1313210 is 123131.

It can be written as a sum of positive squares in 2 ways, for example, as 1125721 + 187489 = 1061^2 + 433^2 .

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1313191 and 1313200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313219) 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, 65651 + ... + 65670.

21313210 is an apocalyptic number.

1313210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1313210 is a deficient number, since it is larger than the sum of its proper divisors (1050586).

1313210 is a wasteful number, since it uses less digits than its factorization.

1313210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131328.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1313210 is about 1145.9537512483. The cubic root of 1313210 is about 109.5077175326.

Adding to 1313210 its reverse (123131), we get a palindrome (1436341).

The spelling of 1313210 in words is "one million, three hundred thirteen thousand, two hundred ten".

Divisors: 1 2 5 10 131321 262642 656605 1313210