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292116305 = 5134494097
BaseRepresentation
bin10001011010010…
…101011101010001
3202100200001020102
4101122111131101
51044240210210
644553022145
710144643015
oct2132253521
9670601212
10292116305
1113a98a338
12819b4955
134869a5b0
142ab20545
151a9a2ea5
hex11695751

292116305 has 8 divisors (see below), whose sum is σ = 377504232. Its totient is φ = 215716608.

The previous prime is 292116301. The next prime is 292116347. The reversal of 292116305 is 503611292.

It can be written as a sum of positive squares in 4 ways, for example, as 57168721 + 234947584 = 7561^2 + 15328^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 292116305 - 22 = 292116301 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (292116301) 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, 2246984 + ... + 2247113.

It is an arithmetic number, because the mean of its divisors is an integer number (47188029).

Almost surely, 2292116305 is an apocalyptic number.

It is an amenable number.

292116305 is a deficient number, since it is larger than the sum of its proper divisors (85387927).

292116305 is a wasteful number, since it uses less digits than its factorization.

292116305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4494115.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 292116305 is about 17091.4102694892. The cubic root of 292116305 is about 663.5168142779.

Adding to 292116305 its reverse (503611292), we get a palindrome (795727597).

The spelling of 292116305 in words is "two hundred ninety-two million, one hundred sixteen thousand, three hundred five".

Divisors: 1 5 13 65 4494097 22470485 58423261 292116305