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2380639 = 29103797
BaseRepresentation
bin1001000101001101011111
311110221121211
421011031133
51102140024
6123005251
726143432
oct11051537
94427554
102380639
111386678
12969827
13654781
1445d819
15320594
hex24535f

2380639 has 8 divisors (see below), whose sum is σ = 2489760. Its totient is φ = 2273376.

The previous prime is 2380633. The next prime is 2380657. The reversal of 2380639 is 9360832.

It is a happy number.

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 2380639 - 25 = 2380607 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2380639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2380633) 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, 2589 + ... + 3385.

It is an arithmetic number, because the mean of its divisors is an integer number (311220).

22380639 is an apocalyptic number.

2380639 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2380639 is a deficient number, since it is larger than the sum of its proper divisors (109121).

2380639 is a wasteful number, since it uses less digits than its factorization.

2380639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 2380639 is about 1542.9319492447. The cubic root of 2380639 is about 133.5255927779.

The spelling of 2380639 in words is "two million, three hundred eighty thousand, six hundred thirty-nine".

Divisors: 1 29 103 797 2987 23113 82091 2380639