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4145287308 = 223345440609
BaseRepresentation
bin1111011100010100…
…0001000010001100
3101200220002102011120
43313011001002030
531442143143213
61523155520540
7204503234511
oct36705010214
911626072146
104145287308
1118379a7788
129782b9150
13510a60536
142b4773308
15193dc3423
hexf714108c

4145287308 has 12 divisors (see below), whose sum is σ = 9672337080. Its totient is φ = 1381762432.

The previous prime is 4145287301. The next prime is 4145287319. The reversal of 4145287308 is 8037825414.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 4145287308.

It is not an unprimeable number, because it can be changed into a prime (4145287301) 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, 172720293 + ... + 172720316.

It is an arithmetic number, because the mean of its divisors is an integer number (806028090).

Almost surely, 24145287308 is an apocalyptic number.

It is an amenable number.

4145287308 is an abundant number, since it is smaller than the sum of its proper divisors (5527049772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4145287308 is a wasteful number, since it uses less digits than its factorization.

4145287308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345440616 (or 345440614 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 4145287308 is about 64383.9056597221. The cubic root of 4145287308 is about 1606.3920478010.

The spelling of 4145287308 in words is "four billion, one hundred forty-five million, two hundred eighty-seven thousand, three hundred eight".

Divisors: 1 2 3 4 6 12 345440609 690881218 1036321827 1381762436 2072643654 4145287308