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426724971 = 31914235261
BaseRepresentation
bin11001011011110…
…100111001101011
31002201221212121120
4121123310321223
51333220144341
6110202110323
713401050061
oct3133647153
91081855546
10426724971
111a9969872
12baaab3a3
136a53a9aa
1440960031
15276e2066
hex196f4e6b

426724971 has 16 divisors (see below), whose sum is σ = 599447040. Its totient is φ = 269269920.

The previous prime is 426724927. The next prime is 426724979. The reversal of 426724971 is 179427624.

It is not a de Polignac number, because 426724971 - 214 = 426708587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (426724979) 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, 78481 + ... + 83741.

It is an arithmetic number, because the mean of its divisors is an integer number (37465440).

Almost surely, 2426724971 is an apocalyptic number.

426724971 is a deficient number, since it is larger than the sum of its proper divisors (172722069).

426724971 is a wasteful number, since it uses less digits than its factorization.

426724971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6706.

The product of its digits is 169344, while the sum is 42.

The square root of 426724971 is about 20657.3224547617. The cubic root of 426724971 is about 752.8631130919.

The spelling of 426724971 in words is "four hundred twenty-six million, seven hundred twenty-four thousand, nine hundred seventy-one".

Divisors: 1 3 19 57 1423 4269 5261 15783 27037 81111 99959 299877 7486403 22459209 142241657 426724971