Search a number
-
+
227550140 = 22511377507
BaseRepresentation
bin11011001000000…
…10001110111100
3120212011202002222
431210002032330
5431223101030
634325104512
75432100326
oct1544021674
9525152088
10227550140
1110749a874
1264258138
13381b216c
1422314616
1514e9c3e5
hexd9023bc

227550140 has 12 divisors (see below), whose sum is σ = 477855336. Its totient is φ = 91020048.

The previous prime is 227550133. The next prime is 227550143. The reversal of 227550140 is 41055722.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227550143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5688734 + ... + 5688773.

It is an arithmetic number, because the mean of its divisors is an integer number (39821278).

Almost surely, 2227550140 is an apocalyptic number.

227550140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

227550140 is an abundant number, since it is smaller than the sum of its proper divisors (250305196).

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

227550140 is a wasteful number, since it uses less digits than its factorization.

227550140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11377516 (or 11377514 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 227550140 is about 15084.7651622423. The cubic root of 227550140 is about 610.5094194820.

The spelling of 227550140 in words is "two hundred twenty-seven million, five hundred fifty thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 11377507 22755014 45510028 56887535 113775070 227550140