Search a number
-
+
312311030 = 2531231103
BaseRepresentation
bin10010100111010…
…111110011110110
3210202200001012012
4102213113303312
51114422423110
650553524222
710511412533
oct2247276366
9722601165
10312311030
11150322999
1288713672
134c91b535
142d699d8a
151c641905
hex129d7cf6

312311030 has 8 divisors (see below), whose sum is σ = 562159872. Its totient is φ = 124924408.

The previous prime is 312310993. The next prime is 312311039. The reversal of 312311030 is 30113213.

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

It is a junction number, because it is equal to n+sod(n) for n = 312310996 and 312311014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312311039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15615542 + ... + 15615561.

It is an arithmetic number, because the mean of its divisors is an integer number (70269984).

Almost surely, 2312311030 is an apocalyptic number.

312311030 is a deficient number, since it is larger than the sum of its proper divisors (249848842).

312311030 is a wasteful number, since it uses less digits than its factorization.

312311030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31231110.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 312311030 is about 17672.3238426643. The cubic root of 312311030 is about 678.4675916355.

Adding to 312311030 its reverse (30113213), we get a palindrome (342424243).

The spelling of 312311030 in words is "three hundred twelve million, three hundred eleven thousand, thirty".

Divisors: 1 2 5 10 31231103 62462206 156155515 312311030