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2123285 = 52711567
BaseRepresentation
bin1000000110011000010101
310222212121012
420012120111
51020421120
6113302005
724022223
oct10063025
93885535
102123285
11122028a
12864905
135945a8
143d3b13
152be1c5
hex206615

2123285 has 8 divisors (see below), whose sum is σ = 2558976. Its totient is φ = 1691280.

The previous prime is 2123281. The next prime is 2123309. The reversal of 2123285 is 5823212.

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

It is not a de Polignac number, because 2123285 - 22 = 2123281 is a prime.

It is a d-powerful number, because it can be written as 26 + 1 + 213 + 37 + 221 + 82 + 56 .

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 2123285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123281) 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, 572 + ... + 2138.

It is an arithmetic number, because the mean of its divisors is an integer number (319872).

22123285 is an apocalyptic number.

It is an amenable number.

2123285 is a deficient number, since it is larger than the sum of its proper divisors (435691).

2123285 is a wasteful number, since it uses less digits than its factorization.

2123285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843.

The product of its digits is 960, while the sum is 23.

The square root of 2123285 is about 1457.1496148303. The cubic root of 2123285 is about 128.5294839661.

Adding to 2123285 its reverse (5823212), we get a palindrome (7946497).

The spelling of 2123285 in words is "two million, one hundred twenty-three thousand, two hundred eighty-five".

Divisors: 1 5 271 1355 1567 7835 424657 2123285