Search a number
-
+
1231314 = 237191543
BaseRepresentation
bin100101100100111010010
32022120001020
410230213102
5303400224
642220310
713315560
oct4544722
92276036
101231314
11771117
124b4696
133415b6
14240a30
15194c79
hex12c9d2

1231314 has 32 divisors (see below), whose sum is σ = 2964480. Its totient is φ = 333072.

The previous prime is 1231313. The next prime is 1231319. The reversal of 1231314 is 4131321.

It is a super-2 number, since 2×12313142 = 3032268333192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1231293 and 1231302.

It is not an unprimeable number, because it can be changed into a prime (1231313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27 + ... + 1569.

It is an arithmetic number, because the mean of its divisors is an integer number (92640).

21231314 is an apocalyptic number.

1231314 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1231314, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1482240).

1231314 is an abundant number, since it is smaller than the sum of its proper divisors (1733166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231314 is a wasteful number, since it uses less digits than its factorization.

1231314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1574.

The product of its digits is 72, while the sum is 15.

The square root of 1231314 is about 1109.6458894620. The cubic root of 1231314 is about 107.1822671530.

Adding to 1231314 its reverse (4131321), we get a palindrome (5362635).

The spelling of 1231314 in words is "one million, two hundred thirty-one thousand, three hundred fourteen".

Divisors: 1 2 3 6 7 14 19 21 38 42 57 114 133 266 399 798 1543 3086 4629 9258 10801 21602 29317 32403 58634 64806 87951 175902 205219 410438 615657 1231314