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8940493 = 31288403
BaseRepresentation
bin100010000110…
…101111001101
3121211020001101
4202012233031
54242043433
6515343101
7135664402
oct42065715
917736041
108940493
115057141
122bb1a91
131b10543
14128a2a9
15bb907d
hex886bcd

8940493 has 4 divisors (see below), whose sum is σ = 9228928. Its totient is φ = 8652060.

The previous prime is 8940479. The next prime is 8940499. The reversal of 8940493 is 3940498.

8940493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 8940493 - 25 = 8940461 is a prime.

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 (8940499) 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, 144171 + ... + 144232.

It is an arithmetic number, because the mean of its divisors is an integer number (2307232).

Almost surely, 28940493 is an apocalyptic number.

It is an amenable number.

8940493 is a deficient number, since it is larger than the sum of its proper divisors (288435).

8940493 is a wasteful number, since it uses less digits than its factorization.

8940493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288434.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 8940493 is about 2990.0657183413. The cubic root of 8940493 is about 207.5489254158.

The spelling of 8940493 in words is "eight million, nine hundred forty thousand, four hundred ninety-three".

Divisors: 1 31 288403 8940493