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313020324 = 22328695009
BaseRepresentation
bin10010101010000…
…100111110100100
3210211000002011100
4102222010332210
51120113122244
651021040100
710520425461
oct2252047644
9724002140
10313020324
11150767891
12889b6030
134cb09336
142d802668
151c731b69
hex12a84fa4

313020324 has 18 divisors (see below), whose sum is σ = 791245910. Its totient is φ = 104340096.

The previous prime is 313020319. The next prime is 313020347. The reversal of 313020324 is 423020313.

It can be written as a sum of positive squares in only one way, i.e., 247118400 + 65901924 = 15720^2 + 8118^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 313020297 and 313020306.

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 5 ways as a sum of consecutive naturals, for example, 4347469 + ... + 4347540.

Almost surely, 2313020324 is an apocalyptic number.

It is an amenable number.

313020324 is an abundant number, since it is smaller than the sum of its proper divisors (478225586).

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

313020324 is a wasteful number, since it uses less digits than its factorization.

313020324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8695019 (or 8695014 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 313020324 is about 17692.3803938306. The cubic root of 313020324 is about 678.9808290740.

Adding to 313020324 its reverse (423020313), we get a palindrome (736040637).

The spelling of 313020324 in words is "three hundred thirteen million, twenty thousand, three hundred twenty-four".

Divisors: 1 2 3 4 6 9 12 18 36 8695009 17390018 26085027 34780036 52170054 78255081 104340108 156510162 313020324