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20066392 = 2317147547
BaseRepresentation
bin100110010001…
…1000001011000
31101202110220201
41030203001120
520114111032
61554031544
7332363413
oct114430130
941673821
1020066392
11103661a5
1268785b4
134207708
142944b7a
151b658e7
hex1323058

20066392 has 16 divisors (see below), whose sum is σ = 39837960. Its totient is φ = 9442944.

The previous prime is 20066369. The next prime is 20066399. The reversal of 20066392 is 29366002.

It is a self number, because there is not a number n which added to its sum of digits gives 20066392.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20066399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73638 + ... + 73909.

Almost surely, 220066392 is an apocalyptic number.

It is an amenable number.

20066392 is a deficient number, since it is larger than the sum of its proper divisors (19771568).

20066392 is a wasteful number, since it uses less digits than its factorization.

20066392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147570 (or 147566 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 20066392 is about 4479.5526562370. The cubic root of 20066392 is about 271.7417892708.

The spelling of 20066392 in words is "twenty million, sixty-six thousand, three hundred ninety-two".

Divisors: 1 2 4 8 17 34 68 136 147547 295094 590188 1180376 2508299 5016598 10033196 20066392