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2689057 = 7384151
BaseRepresentation
bin1010010000100000100001
312001121200201
422100200201
51142022212
6133345201
731566550
oct12204041
95047621
102689057
111577368
12a98201
13731c77
144ddd97
15381b57
hex290821

2689057 has 4 divisors (see below), whose sum is σ = 3073216. Its totient is φ = 2304900.

The previous prime is 2689031. The next prime is 2689073. The reversal of 2689057 is 7509862.

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.

It is a cyclic number.

It is not a de Polignac number, because 2689057 - 27 = 2688929 is a prime.

It is a super-3 number, since 3×26890573 = 58333935745502604579, which contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2689007) 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, 192069 + ... + 192082.

It is an arithmetic number, because the mean of its divisors is an integer number (768304).

22689057 is an apocalyptic number.

It is an amenable number.

2689057 is a deficient number, since it is larger than the sum of its proper divisors (384159).

2689057 is an equidigital number, since it uses as much as digits as its factorization.

2689057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384158.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 2689057 is about 1639.8344428631. The cubic root of 2689057 is about 139.0592884079.

The spelling of 2689057 in words is "two million, six hundred eighty-nine thousand, fifty-seven".

Divisors: 1 7 384151 2689057