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313144532 = 22173452521
BaseRepresentation
bin10010101010100…
…011010011010100
3210211020101112122
4102222203103110
51120131111112
651023435112
710521453551
oct2252432324
9724211478
10313144532
11150842138
1288a55a98
134cb50a2c
142d835a28
151c758872
hex12aa34d4

313144532 has 12 divisors (see below), whose sum is σ = 551171796. Its totient is φ = 155666880.

The previous prime is 313144501. The next prime is 313144543. The reversal of 313144532 is 235441313.

It can be written as a sum of positive squares in 2 ways, for example, as 227285776 + 85858756 = 15076^2 + 9266^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225569 + ... + 226952.

It is an arithmetic number, because the mean of its divisors is an integer number (45930983).

Almost surely, 2313144532 is an apocalyptic number.

It is an amenable number.

313144532 is a deficient number, since it is larger than the sum of its proper divisors (238027264).

313144532 is a wasteful number, since it uses less digits than its factorization.

313144532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452698 (or 452696 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 313144532 is about 17695.8902573451. The cubic root of 313144532 is about 679.0706248391.

Adding to 313144532 its reverse (235441313), we get a palindrome (548585845).

The spelling of 313144532 in words is "three hundred thirteen million, one hundred forty-four thousand, five hundred thirty-two".

Divisors: 1 2 4 173 346 692 452521 905042 1810084 78286133 156572266 313144532