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2081175217 = 112371115859
BaseRepresentation
bin111110000001100…
…0011011010110001
312101001002122200121
41330003003122301
513230240101332
6542302450241
7102400461142
oct17403033261
95331078617
102081175217
11978850820
124a0b93981
13272229634
1415a589ac9
15c2a99797
hex7c0c36b1

2081175217 has 16 divisors (see below), whose sum is σ = 2402472960. Its totient is φ = 1784213200.

The previous prime is 2081175197. The next prime is 2081175251. The reversal of 2081175217 is 7125711802.

It is not a de Polignac number, because 2081175217 - 211 = 2081173169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2081175287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39967 + ... + 75892.

It is an arithmetic number, because the mean of its divisors is an integer number (150154560).

Almost surely, 22081175217 is an apocalyptic number.

It is an amenable number.

2081175217 is a deficient number, since it is larger than the sum of its proper divisors (321297743).

2081175217 is a wasteful number, since it uses less digits than its factorization.

2081175217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115964.

The product of its (nonzero) digits is 7840, while the sum is 34.

The square root of 2081175217 is about 45619.8993532428. The cubic root of 2081175217 is about 1276.7412256477.

The spelling of 2081175217 in words is "two billion, eighty-one million, one hundred seventy-five thousand, two hundred seventeen".

Divisors: 1 11 23 71 253 781 1633 17963 115859 1274449 2664757 8225989 29312327 90485879 189197747 2081175217