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4287872705 = 5899635669
BaseRepresentation
bin1111111110010011…
…1011111011000001
3102001211101111120012
43333210323323001
532240143411310
61545251554305
7211154213414
oct37744737301
912054344505
104287872705
111900435256
129b7bbb995
135344645ac
142c968bb7b
151a168ac05
hexff93bec1

4287872705 has 8 divisors (see below), whose sum is σ = 5203261800. Its totient is φ = 3391755136.

The previous prime is 4287872669. The next prime is 4287872713. The reversal of 4287872705 is 5072787824.

It can be written as a sum of positive squares in 4 ways, for example, as 885717121 + 3402155584 = 29761^2 + 58328^2 .

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 4287872705 - 210 = 4287871681 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4817390 + ... + 4818279.

It is an arithmetic number, because the mean of its divisors is an integer number (650407725).

Almost surely, 24287872705 is an apocalyptic number.

It is an amenable number.

4287872705 is a deficient number, since it is larger than the sum of its proper divisors (915389095).

4287872705 is an equidigital number, since it uses as much as digits as its factorization.

4287872705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9635763.

The product of its (nonzero) digits is 1756160, while the sum is 50.

The square root of 4287872705 is about 65481.8501953022. The cubic root of 4287872705 is about 1624.6031636894.

The spelling of 4287872705 in words is "four billion, two hundred eighty-seven million, eight hundred seventy-two thousand, seven hundred five".

Divisors: 1 5 89 445 9635669 48178345 857574541 4287872705