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2056231 = 7128961
BaseRepresentation
bin111110110000000100111
310212110121201
413312000213
51011244411
6112023331
723322562
oct7660047
93773551
102056231
111184971
12831b47
1356cc08
143b74d9
152a93c1
hex1f6027

2056231 has 4 divisors (see below), whose sum is σ = 2085264. Its totient is φ = 2027200.

The previous prime is 2056211. The next prime is 2056247. The reversal of 2056231 is 1326502.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2056231 - 29 = 2055719 is a prime.

It is a super-2 number, since 2×20562312 = 8456171850722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2056199 and 2056208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2056211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14410 + ... + 14551.

It is an arithmetic number, because the mean of its divisors is an integer number (521316).

22056231 is an apocalyptic number.

2056231 is a deficient number, since it is larger than the sum of its proper divisors (29033).

2056231 is an equidigital number, since it uses as much as digits as its factorization.

2056231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29032.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 2056231 is about 1433.9564149583. The cubic root of 2056231 is about 127.1619856275.

The spelling of 2056231 in words is "two million, fifty-six thousand, two hundred thirty-one".

Divisors: 1 71 28961 2056231