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141244220 = 225132392273
BaseRepresentation
bin10000110101100…
…11011100111100
3100211202221122102
420122303130330
5242124303340
622003204232
73333361505
oct1032633474
9324687572
10141244220
1172801967
123b376678
1323354780
1414a89bac
15c600215
hex86b373c

141244220 has 48 divisors (see below), whose sum is σ = 320906880. Its totient is φ = 51910656.

The previous prime is 141244189. The next prime is 141244249. The reversal of 141244220 is 22442141.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 141244192 and 141244201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61004 + ... + 63276.

It is an arithmetic number, because the mean of its divisors is an integer number (6685560).

Almost surely, 2141244220 is an apocalyptic number.

141244220 is a gapful number since it is divisible by the number (10) 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 141244220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160453440).

141244220 is an abundant number, since it is smaller than the sum of its proper divisors (179662660).

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

141244220 is a wasteful number, since it uses less digits than its factorization.

141244220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2534 (or 2532 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 141244220 is about 11884.6211550895. The cubic root of 141244220 is about 520.7831149164.

Adding to 141244220 its reverse (22442141), we get a palindrome (163686361).

The spelling of 141244220 in words is "one hundred forty-one million, two hundred forty-four thousand, two hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 239 260 478 956 1195 2273 2390 3107 4546 4780 6214 9092 11365 12428 15535 22730 29549 31070 45460 59098 62140 118196 147745 295490 543247 590980 1086494 2172988 2716235 5432470 7062211 10864940 14124422 28248844 35311055 70622110 141244220