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310023142 = 211131676491
BaseRepresentation
bin10010011110101…
…001001111100110
3210121100210210121
4102132221033212
51113331220032
650432512154
710453103362
oct2236511746
9717323717
10310023142
11149aaaa80
12879ab65a
134c2ca060
142d2622a2
151c33da97
hex127a93e6

310023142 has 32 divisors (see below), whose sum is σ = 549690624. Its totient is φ = 129280800.

The previous prime is 310023127. The next prime is 310023151. The reversal of 310023142 is 241320013.

It is a happy number.

310023142 is nontrivially palindromic in base 9.

It is a super-2 number, since 2×3100231422 = 192228697151104328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44517 + ... + 51007.

It is an arithmetic number, because the mean of its divisors is an integer number (17177832).

Almost surely, 2310023142 is an apocalyptic number.

310023142 is a deficient number, since it is larger than the sum of its proper divisors (239667482).

310023142 is a wasteful number, since it uses less digits than its factorization.

310023142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6684.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 310023142 is about 17607.4740380328. The cubic root of 310023142 is about 676.8067859453.

Adding to 310023142 its reverse (241320013), we get a palindrome (551343155).

The spelling of 310023142 in words is "three hundred ten million, twenty-three thousand, one hundred forty-two".

Divisors: 1 2 11 13 22 26 143 167 286 334 1837 2171 3674 4342 6491 12982 23881 47762 71401 84383 142802 168766 928213 1083997 1856426 2167994 11923967 14091961 23847934 28183922 155011571 310023142