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1056231 = 321147227
BaseRepresentation
bin100000001110111100111
31222122212200
410001313213
5232244411
634345543
711656251
oct4016747
91878780
101056231
11661620
1242b2b3
132ac9b7
141d6cd1
1515ce56
hex101de7

1056231 has 24 divisors (see below), whose sum is σ = 1707264. Its totient is φ = 623760.

The previous prime is 1056217. The next prime is 1056241. The reversal of 1056231 is 1326501.

It is not a de Polignac number, because 1056231 - 217 = 925159 is a prime.

It is a super-2 number, since 2×10562312 = 2231247850722, which contains 22 as substring.

It is an Ulam number.

1056231 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056241) 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 23 ways as a sum of consecutive naturals, for example, 4540 + ... + 4766.

It is an arithmetic number, because the mean of its divisors is an integer number (71136).

21056231 is an apocalyptic number.

1056231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1056231 is a deficient number, since it is larger than the sum of its proper divisors (651033).

1056231 is a wasteful number, since it uses less digits than its factorization.

1056231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291 (or 288 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1056231 is about 1027.7309959323. The cubic root of 1056231 is about 101.8402921651.

It can be divided in two parts, 105 and 6231, that added together give a palindrome (6336).

The spelling of 1056231 in words is "one million, fifty-six thousand, two hundred thirty-one".

Divisors: 1 3 9 11 33 47 99 141 227 423 517 681 1551 2043 2497 4653 7491 10669 22473 32007 96021 117359 352077 1056231