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311433034 = 21159239933
BaseRepresentation
bin10010100100000…
…001011101001010
3210201000102210211
4102210001131022
51114211324114
650523031334
710501065013
oct2244013512
9721012724
10311433034
1114a883280
128836b54a
134c6a1a03
142d50c00a
151c51b6c4
hex1290174a

311433034 has 16 divisors (see below), whose sum is σ = 518257440. Its totient is φ = 139160560.

The previous prime is 311433029. The next prime is 311433053. The reversal of 311433034 is 430334113.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 311432996 and 311433014.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118669 + ... + 121264.

It is an arithmetic number, because the mean of its divisors is an integer number (32391090).

Almost surely, 2311433034 is an apocalyptic number.

311433034 is a deficient number, since it is larger than the sum of its proper divisors (206824406).

311433034 is a wasteful number, since it uses less digits than its factorization.

311433034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240005.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 311433034 is about 17647.4653704151. The cubic root of 311433034 is about 677.8312058234.

Adding to 311433034 its reverse (430334113), we get a palindrome (741767147).

The spelling of 311433034 in words is "three hundred eleven million, four hundred thirty-three thousand, thirty-four".

Divisors: 1 2 11 22 59 118 649 1298 239933 479866 2639263 5278526 14156047 28312094 155716517 311433034