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227140 = 22541277
BaseRepresentation
bin110111011101000100
3102112120121
4313131010
524232030
64511324
71634134
oct673504
9375517
10227140
11145721
12ab544
137c504
145cac4
154747a
hex37744

227140 has 24 divisors (see below), whose sum is σ = 490392. Its totient is φ = 88320.

The previous prime is 227131. The next prime is 227147. The reversal of 227140 is 41722.

227140 = T335 + T336 + ... + T338.

It can be written as a sum of positive squares in 4 ways, for example, as 4356 + 222784 = 66^2 + 472^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227147) 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, 682 + ... + 958.

It is an arithmetic number, because the mean of its divisors is an integer number (20433).

2227140 is an apocalyptic number.

227140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 227140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245196).

227140 is an abundant number, since it is smaller than the sum of its proper divisors (263252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

227140 is a wasteful number, since it uses less digits than its factorization.

227140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 227140 is about 476.5920687548. The cubic root of 227140 is about 61.0142401584.

Adding to 227140 its reverse (41722), we get a palindrome (268862).

It can be divided in two parts, 22 and 7140, that multiplied together give a triangular number (157080 = T560).

The spelling of 227140 in words is "two hundred twenty-seven thousand, one hundred forty", and thus it is an iban number.

Divisors: 1 2 4 5 10 20 41 82 164 205 277 410 554 820 1108 1385 2770 5540 11357 22714 45428 56785 113570 227140