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310212130 = 25291069697
BaseRepresentation
bin10010011111010…
…111011000100010
3210121201102001011
4102133113120202
51113403242010
650440531134
710454521354
oct2237273042
9717642034
10310212130
1114a119a68
1287a80aaa
134c365097
142d2b10d4
151c379a8a
hex127d7622

310212130 has 16 divisors (see below), whose sum is σ = 577636920. Its totient is φ = 119805952.

The previous prime is 310212121. The next prime is 310212131. The reversal of 310212130 is 31212013.

It can be written as a sum of positive squares in 4 ways, for example, as 273935601 + 36276529 = 16551^2 + 6023^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 310212130.

It is not an unprimeable number, because it can be changed into a prime (310212131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 534559 + ... + 535138.

Almost surely, 2310212130 is an apocalyptic number.

310212130 is a deficient number, since it is larger than the sum of its proper divisors (267424790).

310212130 is a wasteful number, since it uses less digits than its factorization.

310212130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069733.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 310212130 is about 17612.8399186503. The cubic root of 310212130 is about 676.9442836153.

Adding to 310212130 its reverse (31212013), we get a palindrome (341424143).

The spelling of 310212130 in words is "three hundred ten million, two hundred twelve thousand, one hundred thirty".

Divisors: 1 2 5 10 29 58 145 290 1069697 2139394 5348485 10696970 31021213 62042426 155106065 310212130