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220111340 = 22547234161
BaseRepresentation
bin11010001111010…
…10000111101100
3120100011210222212
431013222013230
5422322030330
633501425552
75311626011
oct1507520754
9510153885
10220111340
111032799a9
126186b2b8
13367a92c7
1421339708
15144cd295
hexd1ea1ec

220111340 has 24 divisors (see below), whose sum is σ = 472070592. Its totient is φ = 86170880.

The previous prime is 220111327. The next prime is 220111343. The reversal of 220111340 is 43111022.

It is not an unprimeable number, because it can be changed into a prime (220111343) 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, 116141 + ... + 118020.

It is an arithmetic number, because the mean of its divisors is an integer number (19669608).

Almost surely, 2220111340 is an apocalyptic number.

220111340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220111340 is an abundant number, since it is smaller than the sum of its proper divisors (251959252).

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

220111340 is a wasteful number, since it uses less digits than its factorization.

220111340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234217 (or 234215 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 220111340 is about 14836.1497700717. The cubic root of 220111340 is about 603.7828956724.

Adding to 220111340 its reverse (43111022), we get a palindrome (263222362).

The spelling of 220111340 in words is "two hundred twenty million, one hundred eleven thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 47 94 188 235 470 940 234161 468322 936644 1170805 2341610 4683220 11005567 22011134 44022268 55027835 110055670 220111340