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3930863 = 29891523
BaseRepresentation
bin1110111111101011101111
321101201010112
432333223233
52001241423
6220130235
745261146
oct16775357
97351115
103930863
112245352
12139697b
13a78271
1474475d
15529a78
hex3bfaef

3930863 has 8 divisors (see below), whose sum is σ = 4114800. Its totient is φ = 3750208.

The previous prime is 3930841. The next prime is 3930869. The reversal of 3930863 is 3680393.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3930863 - 26 = 3930799 is a prime.

It is a super-4 number, since 4×39308634 (a number of 27 digits) contains 4444 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3930869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1820 + ... + 3342.

It is an arithmetic number, because the mean of its divisors is an integer number (514350).

Almost surely, 23930863 is an apocalyptic number.

3930863 is a deficient number, since it is larger than the sum of its proper divisors (183937).

3930863 is a wasteful number, since it uses less digits than its factorization.

3930863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 3930863 is about 1982.6404111689. The cubic root of 3930863 is about 157.8202169151.

The spelling of 3930863 in words is "three million, nine hundred thirty thousand, eight hundred sixty-three".

Divisors: 1 29 89 1523 2581 44167 135547 3930863