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2213701 = 7316243
BaseRepresentation
bin1000011100011101000101
311011110121221
420130131011
51031314301
6115240341
724546640
oct10343505
94143557
102213701
111282206
128a90b1
135c67a9
14418a57
152dada1
hex21c745

2213701 has 4 divisors (see below), whose sum is σ = 2529952. Its totient is φ = 1897452.

The previous prime is 2213699. The next prime is 2213711. The reversal of 2213701 is 1073122.

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 an emirpimes, since its reverse is a distinct semiprime: 1073122 = 2536561.

It is a cyclic number.

It is not a de Polignac number, because 2213701 - 21 = 2213699 is a prime.

It is a super-3 number, since 3×22137013 = 32544540080288133303, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213711) 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, 158115 + ... + 158128.

It is an arithmetic number, because the mean of its divisors is an integer number (632488).

22213701 is an apocalyptic number.

It is an amenable number.

2213701 is a deficient number, since it is larger than the sum of its proper divisors (316251).

2213701 is an equidigital number, since it uses as much as digits as its factorization.

2213701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316250.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 2213701 is about 1487.8511350266. The cubic root of 2213701 is about 130.3285771004.

Adding to 2213701 its reverse (1073122), we get a palindrome (3286823).

The spelling of 2213701 in words is "two million, two hundred thirteen thousand, seven hundred one".

Divisors: 1 7 316243 2213701