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2705213 = 72231733
BaseRepresentation
bin1010010100011100111101
312002102212002
422110130331
51143031323
6133552045
731664630
oct12243475
95072762
102705213
111588515
12aa5625
13739424
14505c17
15386828
hex29473d

2705213 has 8 divisors (see below), whose sum is σ = 3107328. Its totient is φ = 2307024.

The previous prime is 2705203. The next prime is 2705243. The reversal of 2705213 is 3125072.

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 2705213 - 28 = 2704957 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2705203) 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, 695 + ... + 2427.

It is an arithmetic number, because the mean of its divisors is an integer number (388416).

22705213 is an apocalyptic number.

It is an amenable number.

2705213 is a deficient number, since it is larger than the sum of its proper divisors (402115).

2705213 is a wasteful number, since it uses less digits than its factorization.

2705213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 2705213 is about 1644.7531729716. The cubic root of 2705213 is about 139.3372244410.

The spelling of 2705213 in words is "two million, seven hundred five thousand, two hundred thirteen".

Divisors: 1 7 223 1561 1733 12131 386459 2705213