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20068712 = 231926949
BaseRepresentation
bin100110010001…
…1100101101000
31101202121002122
41030203211220
520114144322
61554050412
7332403236
oct114434550
941677078
1020068712
1110367a14
126879a08
1342087a1
142945956
151b66442
hex1323968

20068712 has 24 divisors (see below), whose sum is σ = 39719250. Its totient is φ = 9504864.

The previous prime is 20068709. The next prime is 20068729. The reversal of 20068712 is 21786002.

It can be written as a sum of positive squares in only one way, i.e., 13586596 + 6482116 = 3686^2 + 2546^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 587 + ... + 6362.

Almost surely, 220068712 is an apocalyptic number.

It is an amenable number.

20068712 is a deficient number, since it is larger than the sum of its proper divisors (19650538).

20068712 is a wasteful number, since it uses less digits than its factorization.

20068712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6993 (or 6970 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 20068712 is about 4479.8116031815. The cubic root of 20068712 is about 271.7522614516.

The spelling of 20068712 in words is "twenty million, sixty-eight thousand, seven hundred twelve".

Divisors: 1 2 4 8 19 38 76 152 361 722 1444 2888 6949 13898 27796 55592 132031 264062 528124 1056248 2508589 5017178 10034356 20068712