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2141807947 = 7929539181
BaseRepresentation
bin111111110101001…
…0110010101001011
312112021012010011021
41333222112111023
513341300323242
6552310213311
7104035032016
oct17752262513
95467163137
102141807947
119a9aa4014
124b9354237
132819685a6
1416465037d
15c8074b67
hex7fa9654b

2141807947 has 8 divisors (see below), whose sum is σ = 2169890240. Its totient is φ = 2113750080.

The previous prime is 2141807929. The next prime is 2141807957. The reversal of 2141807947 is 7497081412.

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 2141807947 - 27 = 2141807819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2141807957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228697 + ... + 237877.

It is an arithmetic number, because the mean of its divisors is an integer number (271236280).

Almost surely, 22141807947 is an apocalyptic number.

2141807947 is a deficient number, since it is larger than the sum of its proper divisors (28082293).

2141807947 is an equidigital number, since it uses as much as digits as its factorization.

2141807947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12213.

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 2141807947 is about 46279.6709906196. The cubic root of 2141807947 is about 1289.0215417491.

The spelling of 2141807947 in words is "two billion, one hundred forty-one million, eight hundred seven thousand, nine hundred forty-seven".

Divisors: 1 79 2953 9181 233287 725299 27111493 2141807947