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4228493 = 31136403
BaseRepresentation
bin10000001000010110001101
321221211101212
4100020112031
52040302433
6230344205
750640653
oct20102615
97854355
104228493
112428a25
1214bb065
13b50889
147c0dd3
15587d48
hex40858d

4228493 has 4 divisors (see below), whose sum is σ = 4364928. Its totient is φ = 4092060.

The previous prime is 4228489. The next prime is 4228501. The reversal of 4228493 is 3948224.

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 4228493 - 22 = 4228489 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4228423) 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, 68171 + ... + 68232.

It is an arithmetic number, because the mean of its divisors is an integer number (1091232).

Almost surely, 24228493 is an apocalyptic number.

It is an amenable number.

4228493 is a deficient number, since it is larger than the sum of its proper divisors (136435).

4228493 is a wasteful number, since it uses less digits than its factorization.

4228493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136434.

The product of its digits is 13824, while the sum is 32.

The square root of 4228493 is about 2056.3299832469. The cubic root of 4228493 is about 161.7068951978.

The spelling of 4228493 in words is "four million, two hundred twenty-eight thousand, four hundred ninety-three".

Divisors: 1 31 136403 4228493