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2380861 = 7248589
BaseRepresentation
bin1001000101010000111101
311110221221001
421011100331
51102141421
6123010301
726144200
oct11052075
94427831
102380861
11138685a
12969991
136548c2
1445d937
15320691
hex24543d

2380861 has 6 divisors (see below), whose sum is σ = 2769630. Its totient is φ = 2040696.

The previous prime is 2380853. The next prime is 2380877. The reversal of 2380861 is 1680832.

It can be written as a sum of positive squares in only one way, i.e., 2160900 + 219961 = 1470^2 + 469^2 .

It is not a de Polignac number, because 2380861 - 23 = 2380853 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 (2380801) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24246 + ... + 24343.

It is an arithmetic number, because the mean of its divisors is an integer number (461605).

22380861 is an apocalyptic number.

It is an amenable number.

2380861 is a deficient number, since it is larger than the sum of its proper divisors (388769).

2380861 is an equidigital number, since it uses as much as digits as its factorization.

2380861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48603 (or 48596 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 2380861 is about 1543.0038885239. The cubic root of 2380861 is about 133.5297431706.

The spelling of 2380861 in words is "two million, three hundred eighty thousand, eight hundred sixty-one".

Divisors: 1 7 49 48589 340123 2380861