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31130134 = 272223581
BaseRepresentation
bin111011011000…
…0001000010110
32011120120111221
41312300020112
530432131014
63031120554
7525413260
oct166601026
964516457
1031130134
1116632592
12a51315a
1365ac4c9
1441c4b30
152aedb24
hex1db0216

31130134 has 8 divisors (see below), whose sum is σ = 53365968. Its totient is φ = 13341480.

The previous prime is 31130101. The next prime is 31130147. The reversal of 31130134 is 43103113.

31130134 is nontrivially palindromic in base 12.

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

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1111777 + ... + 1111804.

It is an arithmetic number, because the mean of its divisors is an integer number (6670746).

Almost surely, 231130134 is an apocalyptic number.

31130134 is a deficient number, since it is larger than the sum of its proper divisors (22235834).

31130134 is a wasteful number, since it uses less digits than its factorization.

31130134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223590.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 31130134 is about 5579.4385022151. The cubic root of 31130134 is about 314.5770219377.

Adding to 31130134 its reverse (43103113), we get a palindrome (74233247).

The spelling of 31130134 in words is "thirty-one million, one hundred thirty thousand, one hundred thirty-four".

Divisors: 1 2 7 14 2223581 4447162 15565067 31130134