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313420 = 22515671
BaseRepresentation
bin1001100100001001100
3120220221011
41030201030
540012140
610415004
72443522
oct1144114
9526834
10313420
111a4528
12131464
13ac873
1482312
1562cea
hex4c84c

313420 has 12 divisors (see below), whose sum is σ = 658224. Its totient is φ = 125360.

The previous prime is 313409. The next prime is 313471. The reversal of 313420 is 24313.

It is a self number, because there is not a number n which added to its sum of digits gives 313420.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7816 + ... + 7855.

It is an arithmetic number, because the mean of its divisors is an integer number (54852).

2313420 is an apocalyptic number.

It is an amenable number.

313420 is an abundant number, since it is smaller than the sum of its proper divisors (344804).

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

313420 is a wasteful number, since it uses less digits than its factorization.

313420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15680 (or 15678 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 313420 is about 559.8392626460. The cubic root of 313420 is about 67.9269688831.

Adding to 313420 its reverse (24313), we get a palindrome (337733).

The spelling of 313420 in words is "three hundred thirteen thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 15671 31342 62684 78355 156710 313420