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427247944 = 23174097681
BaseRepresentation
bin11001011101110…
…100100101001000
31002202221102222221
4121131310211020
51333333413234
6110221223424
713405355554
oct3135644510
91082842887
10427247944
111aa196782
12bb101b74
136a691a46
1440a58864
1527796eb4
hex19774948

427247944 has 32 divisors (see below), whose sum is σ = 850397400. Its totient is φ = 200540160.

The previous prime is 427247911. The next prime is 427247959. The reversal of 427247944 is 449742724.

It can be written as a sum of positive squares in 4 ways, for example, as 422795844 + 4452100 = 20562^2 + 2110^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 427247944.

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, 51784 + ... + 59464.

Almost surely, 2427247944 is an apocalyptic number.

It is an amenable number.

427247944 is a deficient number, since it is larger than the sum of its proper divisors (423149456).

427247944 is a wasteful number, since it uses less digits than its factorization.

427247944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8113 (or 8109 counting only the distinct ones).

The product of its digits is 451584, while the sum is 43.

The square root of 427247944 is about 20669.9768746847. The cubic root of 427247944 is about 753.1705447890.

The spelling of 427247944 in words is "four hundred twenty-seven million, two hundred forty-seven thousand, nine hundred forty-four".

Divisors: 1 2 4 8 17 34 68 136 409 818 1636 3272 6953 7681 13906 15362 27812 30724 55624 61448 130577 261154 522308 1044616 3141529 6283058 12566116 25132232 53405993 106811986 213623972 427247944