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148220 = 2257411
BaseRepresentation
bin100100001011111100
321112022122
4210023330
514220340
63102112
71155062
oct441374
9245278
10148220
11a13a6
1271938
1352607
143c032
152ddb5
hex242fc

148220 has 12 divisors (see below), whose sum is σ = 311304. Its totient is φ = 59280.

The previous prime is 148207. The next prime is 148229. The reversal of 148220 is 22841.

148220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 148220.

It is not an unprimeable number, because it can be changed into a prime (148229) by changing a digit.

148220 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3686 + ... + 3725.

It is an arithmetic number, because the mean of its divisors is an integer number (25942).

2148220 is an apocalyptic number.

148220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

148220 is an abundant number, since it is smaller than the sum of its proper divisors (163084).

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

148220 is a wasteful number, since it uses less digits than its factorization.

148220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7420 (or 7418 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 148220 is about 384.9935064387. The cubic root of 148220 is about 52.9219213443.

The spelling of 148220 in words is "one hundred forty-eight thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 7411 14822 29644 37055 74110 148220