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2293213 = 13176401
BaseRepresentation
bin1000101111110111011101
311022111200211
420233313131
51041340323
6121052421
725330516
oct10576735
94274624
102293213
111326a1a
12927111
13623a40
14439a0d
1530470d
hex22fddd

2293213 has 4 divisors (see below), whose sum is σ = 2469628. Its totient is φ = 2116800.

The previous prime is 2293199. The next prime is 2293219. The reversal of 2293213 is 3123922.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1582564 + 710649 = 1258^2 + 843^2 .

It is a cyclic number.

It is not a de Polignac number, because 2293213 - 29 = 2292701 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 (2293219) 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, 88188 + ... + 88213.

It is an arithmetic number, because the mean of its divisors is an integer number (617407).

22293213 is an apocalyptic number.

It is an amenable number.

2293213 is a deficient number, since it is larger than the sum of its proper divisors (176415).

2293213 is a wasteful number, since it uses less digits than its factorization.

2293213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176414.

The product of its digits is 648, while the sum is 22.

The square root of 2293213 is about 1514.3358280117. The cubic root of 2293213 is about 131.8706453943.

It can be divided in two parts, 22932 and 13, that multiplied together give a square (298116 = 5462).

The spelling of 2293213 in words is "two million, two hundred ninety-three thousand, two hundred thirteen".

Divisors: 1 13 176401 2293213