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308513116 = 22312488009
BaseRepresentation
bin10010011000111…
…000100101011100
3210111112002102201
4102120320211130
51112434404431
650340301244
710434214102
oct2230704534
9714462381
10308513116
1114916951a
12873a1824
134bbbb952
142cd8bc72
151c141461
hex1263895c

308513116 has 12 divisors (see below), whose sum is σ = 557314240. Its totient is φ = 149280480.

The previous prime is 308513113. The next prime is 308513129. The reversal of 308513116 is 611315803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308513113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1243881 + ... + 1244128.

Almost surely, 2308513116 is an apocalyptic number.

It is an amenable number.

308513116 is a deficient number, since it is larger than the sum of its proper divisors (248801124).

308513116 is a wasteful number, since it uses less digits than its factorization.

308513116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2488044 (or 2488042 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 308513116 is about 17564.5414400718. The cubic root of 308513116 is about 675.7061588373.

Adding to 308513116 its reverse (611315803), we get a palindrome (919828919).

The spelling of 308513116 in words is "three hundred eight million, five hundred thirteen thousand, one hundred sixteen".

Divisors: 1 2 4 31 62 124 2488009 4976018 9952036 77128279 154256558 308513116