Search a number
-
+
311470 = 2531147
BaseRepresentation
bin1001100000010101110
3120211020221
41030002232
534431340
610401554
72435035
oct1140256
9524227
10311470
111a3015
121302ba
13aba03
148171c
156244a
hex4c0ae

311470 has 8 divisors (see below), whose sum is σ = 560664. Its totient is φ = 124584.

The previous prime is 311453. The next prime is 311473. The reversal of 311470 is 74113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 311470.

It is not an unprimeable number, because it can be changed into a prime (311473) by changing a digit.

311470 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15564 + ... + 15583.

It is an arithmetic number, because the mean of its divisors is an integer number (70083).

2311470 is an apocalyptic number.

311470 is a deficient number, since it is larger than the sum of its proper divisors (249194).

311470 is a wasteful number, since it uses less digits than its factorization.

311470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31154.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 311470 is about 558.0949739964. The cubic root of 311470 is about 67.7858023485.

Adding to 311470 its reverse (74113), we get a palindrome (385583).

The spelling of 311470 in words is "three hundred eleven thousand, four hundred seventy", and thus it is an iban number.

Divisors: 1 2 5 10 31147 62294 155735 311470