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3930933 = 31310311
BaseRepresentation
bin1110111111101100110101
321101201020010
432333230311
52001242213
6220130433
745261306
oct16775465
97351203
103930933
112245406
121396a19
13a782c6
147447ad
15529ac3
hex3bfb35

3930933 has 4 divisors (see below), whose sum is σ = 5241248. Its totient is φ = 2620620.

The previous prime is 3930923. The next prime is 3930973. The reversal of 3930933 is 3390393.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3390393 = 31130131.

It is not a de Polignac number, because 3930933 - 26 = 3930869 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3930933.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3930923) 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, 655153 + ... + 655158.

It is an arithmetic number, because the mean of its divisors is an integer number (1310312).

Almost surely, 23930933 is an apocalyptic number.

It is an amenable number.

3930933 is a deficient number, since it is larger than the sum of its proper divisors (1310315).

3930933 is a wasteful number, since it uses less digits than its factorization.

3930933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310314.

The product of its (nonzero) digits is 6561, while the sum is 30.

The square root of 3930933 is about 1982.6580643167. The cubic root of 3930933 is about 157.8211537195.

The spelling of 3930933 in words is "three million, nine hundred thirty thousand, nine hundred thirty-three".

Divisors: 1 3 1310311 3930933