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427292305 = 51165911789
BaseRepresentation
bin11001011101111…
…111011010010001
31002210000200211221
4121131333122101
51333341323210
6110222205041
713405632106
oct3135773221
91083020757
10427292305
111aa217040
12bb123781
136a6a8cab
1440a6aaad
15277a51da
hex1977f691

427292305 has 16 divisors (see below), whose sum is σ = 560260800. Its totient is φ = 310260160.

The previous prime is 427292269. The next prime is 427292323. The reversal of 427292305 is 503292724.

It is a happy number.

It is not a de Polignac number, because 427292305 - 213 = 427284113 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30351 + ... + 42139.

It is an arithmetic number, because the mean of its divisors is an integer number (35016300).

Almost surely, 2427292305 is an apocalyptic number.

It is an amenable number.

427292305 is a deficient number, since it is larger than the sum of its proper divisors (132968495).

427292305 is a wasteful number, since it uses less digits than its factorization.

427292305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12464.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 427292305 is about 20671.0499249554. The cubic root of 427292305 is about 753.1966110289.

The spelling of 427292305 in words is "four hundred twenty-seven million, two hundred ninety-two thousand, three hundred five".

Divisors: 1 5 11 55 659 3295 7249 11789 36245 58945 129679 648395 7768951 38844755 85458461 427292305