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2231057 = 29107719
BaseRepresentation
bin1000100000101100010001
311012100102202
420200230101
51032343212
6115452545
724651353
oct10405421
94170382
102231057
111294254
128b7155
1360166a
144210d3
152e10c2
hex220b11

2231057 has 8 divisors (see below), whose sum is σ = 2332800. Its totient is φ = 2131024.

The previous prime is 2231051. The next prime is 2231059. The reversal of 2231057 is 7501322.

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 2231057 - 28 = 2230801 is a prime.

It is a super-3 number, since 3×22310573 = 33316030624430226579, which contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2231051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2744 + ... + 3462.

It is an arithmetic number, because the mean of its divisors is an integer number (291600).

22231057 is an apocalyptic number.

It is an amenable number.

2231057 is a deficient number, since it is larger than the sum of its proper divisors (101743).

2231057 is a wasteful number, since it uses less digits than its factorization.

2231057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 2231057 is about 1493.6723201559. The cubic root of 2231057 is about 130.6682942958.

Adding to 2231057 its reverse (7501322), we get a palindrome (9732379).

The spelling of 2231057 in words is "two million, two hundred thirty-one thousand, fifty-seven".

Divisors: 1 29 107 719 3103 20851 76933 2231057