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311494482 = 232138914957
BaseRepresentation
bin10010100100010…
…000011101010010
3210201010120002200
4102210100131102
51114220310412
650524224030
710501442115
oct2244203522
9721116080
10311494482
1114a915462
128839b016
134c6c3980
142d52657c
151c52e9dc
hex12910752

311494482 has 48 divisors (see below), whose sum is σ = 735036120. Its totient is φ = 94761216.

The previous prime is 311494471. The next prime is 311494499. The reversal of 311494482 is 284494113.

It is a happy number.

311494482 is a `hidden beast` number, since 31 + 149 + 4 + 482 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 125417601 + 186076881 = 11199^2 + 13641^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13348 + ... + 28304.

Almost surely, 2311494482 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 311494482, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (367518060).

311494482 is an abundant number, since it is smaller than the sum of its proper divisors (423541638).

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

311494482 is a wasteful number, since it uses less digits than its factorization.

311494482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15067 (or 15064 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 311494482 is about 17649.2062711047. The cubic root of 311494482 is about 677.8757832320.

The spelling of 311494482 in words is "three hundred eleven million, four hundred ninety-four thousand, four hundred eighty-two".

Divisors: 1 2 3 6 9 13 18 26 39 78 89 117 178 234 267 534 801 1157 1602 2314 3471 6942 10413 14957 20826 29914 44871 89742 134613 194441 269226 388882 583323 1166646 1331173 1749969 2662346 3499938 3993519 7987038 11980557 17305249 23961114 34610498 51915747 103831494 155747241 311494482