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2830061 = 13217697
BaseRepresentation
bin1010110010111011101101
312022210010002
422302323231
51211030221
6140354045
733024623
oct12627355
95283102
102830061
1116632a3
12b45925
137811c0
14539513
153ad80b
hex2b2eed

2830061 has 4 divisors (see below), whose sum is σ = 3047772. Its totient is φ = 2612352.

The previous prime is 2830049. The next prime is 2830067. The reversal of 2830061 is 1600382.

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 1674436 + 1155625 = 1294^2 + 1075^2 .

It is a cyclic number.

It is not a de Polignac number, because 2830061 - 214 = 2813677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2830067) 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, 108836 + ... + 108861.

It is an arithmetic number, because the mean of its divisors is an integer number (761943).

22830061 is an apocalyptic number.

It is an amenable number.

2830061 is a deficient number, since it is larger than the sum of its proper divisors (217711).

2830061 is a wasteful number, since it uses less digits than its factorization.

2830061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217710.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2830061 is about 1682.2785143965. The cubic root of 2830061 is about 141.4485822497.

The spelling of 2830061 in words is "two million, eight hundred thirty thousand, sixty-one".

Divisors: 1 13 217697 2830061