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311010242 = 21451107171
BaseRepresentation
bin10010100010011…
…010001111000010
3210200012221211212
4102202122033002
51114104311432
650510010122
710464354254
oct2242321702
9720187755
10311010242
1114a614664
12881a6942
134c58443a
142d43bcd4
151c4862b2
hex1289a3c2

311010242 has 8 divisors (see below), whose sum is σ = 466841232. Its totient is φ = 155396500.

The previous prime is 311010241. The next prime is 311010277. The reversal of 311010242 is 242010113.

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

It is not an unprimeable number, because it can be changed into a prime (311010241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50684 + ... + 56487.

It is an arithmetic number, because the mean of its divisors is an integer number (58355154).

Almost surely, 2311010242 is an apocalyptic number.

311010242 is a deficient number, since it is larger than the sum of its proper divisors (155830990).

311010242 is a wasteful number, since it uses less digits than its factorization.

311010242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108624.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 311010242 is about 17635.4824714267. The cubic root of 311010242 is about 677.5243325820.

Adding to 311010242 its reverse (242010113), we get a palindrome (553020355).

The spelling of 311010242 in words is "three hundred eleven million, ten thousand, two hundred forty-two".

Divisors: 1 2 1451 2902 107171 214342 155505121 311010242