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2109980347 = 17294279879
BaseRepresentation
bin111110111000011…
…1011111010111011
312110001022002220021
41331300323322323
513310123332342
6545212111311
7103200352126
oct17560737273
95401262807
102109980347
11993035512
124aa765537
132781a37a7
141603273bd
15c5389567
hex7dc3bebb

2109980347 has 8 divisors (see below), whose sum is σ = 2311135200. Its totient is φ = 1917385344.

The previous prime is 2109980333. The next prime is 2109980399. The reversal of 2109980347 is 7430899012.

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

It is not a de Polignac number, because 2109980347 - 227 = 1975762619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2109989347) 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, 2139447 + ... + 2140432.

It is an arithmetic number, because the mean of its divisors is an integer number (288891900).

Almost surely, 22109980347 is an apocalyptic number.

2109980347 is a deficient number, since it is larger than the sum of its proper divisors (201154853).

2109980347 is a wasteful number, since it uses less digits than its factorization.

2109980347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4279925.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 2109980347 is about 45934.5223878512. The cubic root of 2109980347 is about 1282.6046302066.

The spelling of 2109980347 in words is "two billion, one hundred nine million, nine hundred eighty thousand, three hundred forty-seven".

Divisors: 1 17 29 493 4279879 72757943 124116491 2109980347