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2257039 = 171031289
BaseRepresentation
bin1000100111000010001111
311020200002001
420213002033
51034211124
6120213131
725120201
oct10470217
94220061
102257039
111301824
1290a1a7
13610435
1442a771
152e8b44
hex22708f

2257039 has 8 divisors (see below), whose sum is σ = 2414880. Its totient is φ = 2102016.

The previous prime is 2257007. The next prime is 2257049. The reversal of 2257039 is 9307522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2257039 - 25 = 2257007 is a prime.

It is a Duffinian number.

2257039 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2256998 and 2257016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257049) 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, 1107 + ... + 2395.

It is an arithmetic number, because the mean of its divisors is an integer number (301860).

22257039 is an apocalyptic number.

2257039 is a deficient number, since it is larger than the sum of its proper divisors (157841).

2257039 is a wasteful number, since it uses less digits than its factorization.

2257039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 2257039 is about 1502.3445011049. The cubic root of 2257039 is about 131.1735748572.

The spelling of 2257039 in words is "two million, two hundred fifty-seven thousand, thirty-nine".

Divisors: 1 17 103 1289 1751 21913 132767 2257039