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311130134 = 2761364321
BaseRepresentation
bin10010100010110…
…111100000010110
3210200110001022022
4102202313200112
51114122131014
650512333142
710465363640
oct2242674026
9720401268
10311130134
1114a696747
12882441b2
134c5c6b93
142d46d890
151c4aba8e
hex128b7816

311130134 has 16 divisors (see below), whose sum is σ = 542111136. Its totient is φ = 131155200.

The previous prime is 311130133. The next prime is 311130173. The reversal of 311130134 is 431031113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311130133) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 181307 + ... + 183014.

It is an arithmetic number, because the mean of its divisors is an integer number (33881946).

Almost surely, 2311130134 is an apocalyptic number.

311130134 is a deficient number, since it is larger than the sum of its proper divisors (230981002).

311130134 is a wasteful number, since it uses less digits than its factorization.

311130134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364391.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 311130134 is about 17638.8813137342. The cubic root of 311130134 is about 677.6113814963.

Adding to 311130134 its reverse (431031113), we get a palindrome (742161247).

The spelling of 311130134 in words is "three hundred eleven million, one hundred thirty thousand, one hundred thirty-four".

Divisors: 1 2 7 14 61 122 427 854 364321 728642 2550247 5100494 22223581 44447162 155565067 311130134