Search a number
-
+
310853140 = 225131195589
BaseRepresentation
bin10010100001110…
…011111000010100
3210122220222100021
4102201303320110
51114034300030
650502354524
710463131243
oct2241637024
9718828307
10310853140
1114a517624
128812ba44
134c52aa90
142d3da95a
151c45497a
hex12873e14

310853140 has 24 divisors (see below), whose sum is σ = 703006920. Its totient is φ = 114776448.

The previous prime is 310853111. The next prime is 310853171. The reversal of 310853140 is 41358013.

It can be written as a sum of positive squares in 4 ways, for example, as 9622404 + 301230736 = 3102^2 + 17356^2 .

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 7 ways as a sum of consecutive naturals, for example, 597535 + ... + 598054.

It is an arithmetic number, because the mean of its divisors is an integer number (29291955).

Almost surely, 2310853140 is an apocalyptic number.

It is an amenable number.

310853140 is an abundant number, since it is smaller than the sum of its proper divisors (392153780).

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

310853140 is a wasteful number, since it uses less digits than its factorization.

310853140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195611 (or 1195609 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 310853140 is about 17631.0277635763. The cubic root of 310853140 is about 677.4102330652.

It can be divided in two parts, 31085 and 3140, that added together give a square (34225 = 1852).

The spelling of 310853140 in words is "three hundred ten million, eight hundred fifty-three thousand, one hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 1195589 2391178 4782356 5977945 11955890 15542657 23911780 31085314 62170628 77713285 155426570 310853140