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2023213 = 12591607
BaseRepresentation
bin111101101111100101101
310210210022211
413231330231
51004220323
6111210421
723124403
oct7557455
93723284
102023213
111162085
12816a11
1355ab8a
143a9473
1529e70d
hex1edf2d

2023213 has 4 divisors (see below), whose sum is σ = 2026080. Its totient is φ = 2020348.

The previous prime is 2023211. The next prime is 2023223. The reversal of 2023213 is 3123202.

It is a happy number.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3123202 = 21561601.

It is a cyclic number.

It is not a de Polignac number, because 2023213 - 21 = 2023211 is a prime.

It is a Duffinian number.

2023213 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2023193 and 2023202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2023211) 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, 456 + ... + 2062.

It is an arithmetic number, because the mean of its divisors is an integer number (506520).

22023213 is an apocalyptic number.

It is an amenable number.

2023213 is a deficient number, since it is larger than the sum of its proper divisors (2867).

2023213 is a wasteful number, since it uses less digits than its factorization.

2023213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2866.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 2023213 is about 1422.3969206941. The cubic root of 2023213 is about 126.4776736781.

Adding to 2023213 its reverse (3123202), we get a palindrome (5146415).

The spelling of 2023213 in words is "two million, twenty-three thousand, two hundred thirteen".

Divisors: 1 1259 1607 2023213