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4280023 = 112913417
BaseRepresentation
bin10000010100111011010111
322001110002101
4100110323113
52043430043
6231422531
751244126
oct20247327
98043071
104280023
112463710
121524a47
13b6b177
147d5abd
1559824d
hex414ed7

4280023 has 8 divisors (see below), whose sum is σ = 4830480. Its totient is φ = 3756480.

The previous prime is 4280021. The next prime is 4280033. The reversal of 4280023 is 3200824.

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 4280023 - 21 = 4280021 is a prime.

It is a Duffinian number.

4280023 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4280021) 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, 6390 + ... + 7027.

It is an arithmetic number, because the mean of its divisors is an integer number (603810).

Almost surely, 24280023 is an apocalyptic number.

4280023 is a deficient number, since it is larger than the sum of its proper divisors (550457).

4280023 is a wasteful number, since it uses less digits than its factorization.

4280023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13457.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 4280023 is about 2068.8216452851. The cubic root of 4280023 is about 162.3611184187.

Adding to 4280023 its reverse (3200824), we get a palindrome (7480847).

The spelling of 4280023 in words is "four million, two hundred eighty thousand, twenty-three".

Divisors: 1 11 29 319 13417 147587 389093 4280023