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20068716 = 2231672393
BaseRepresentation
bin100110010001…
…1100101101100
31101202121002210
41030203211230
520114144331
61554050420
7332403243
oct114434554
941677083
1020068716
1110367a18
126879a10
1342087a5
14294595a
151b66446
hex132396c

20068716 has 12 divisors (see below), whose sum is σ = 46827032. Its totient is φ = 6689568.

The previous prime is 20068709. The next prime is 20068729. The reversal of 20068716 is 61786002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 836185 + ... + 836208.

Almost surely, 220068716 is an apocalyptic number.

It is an amenable number.

20068716 is an abundant number, since it is smaller than the sum of its proper divisors (26758316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20068716 is a wasteful number, since it uses less digits than its factorization.

20068716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1672400 (or 1672398 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 20068716 is about 4479.8120496289. The cubic root of 20068716 is about 271.7522795064.

The spelling of 20068716 in words is "twenty million, sixty-eight thousand, seven hundred sixteen".

Divisors: 1 2 3 4 6 12 1672393 3344786 5017179 6689572 10034358 20068716