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310213042 = 21713017013
BaseRepresentation
bin10010011111010…
…111100110110010
3210121201110021221
4102133113212302
51113403304132
650440535254
710454524126
oct2237274662
9717643257
10310213042
1114a11a717
1287a8152a
134c365619
142d2b1586
151c379e97
hex127d79b2

310213042 has 16 divisors (see below), whose sum is σ = 493140312. Its totient is φ = 145849600.

The previous prime is 310213039. The next prime is 310213049. The reversal of 310213042 is 240312013.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 256352121 + 53860921 = 16011^2 + 7339^2 .

It is not an unprimeable number, because it can be changed into a prime (310213049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40728 + ... + 47740.

Almost surely, 2310213042 is an apocalyptic number.

310213042 is a deficient number, since it is larger than the sum of its proper divisors (182927270).

310213042 is a wasteful number, since it uses less digits than its factorization.

310213042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8333.

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

The square root of 310213042 is about 17612.8658088342. The cubic root of 310213042 is about 676.9449470028.

Adding to 310213042 its reverse (240312013), we get a palindrome (550525055).

The spelling of 310213042 in words is "three hundred ten million, two hundred thirteen thousand, forty-two".

Divisors: 1 2 17 34 1301 2602 7013 14026 22117 44234 119221 238442 9123913 18247826 155106521 310213042