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111240244220 = 22571137031621
BaseRepresentation
bin110011110011001101…
…1110110101111111100
3101122010112010220121012
41213212123312233330
53310310000303340
6123034132254352
711015431321550
oct1474633665774
9348115126535
10111240244220
11431a4243a36
12196861713b8
13a64a442121
145553bcb860
152d60e32565
hex19e66f6bfc

111240244220 has 48 divisors (see below), whose sum is σ = 269339249088. Its totient is φ = 37801989120.

The previous prime is 111240244183. The next prime is 111240244231. The reversal of 111240244220 is 22442042111.

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, 3499991 + ... + 3531630.

It is an arithmetic number, because the mean of its divisors is an integer number (5611234356).

Almost surely, 2111240244220 is an apocalyptic number.

111240244220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111240244220 is an abundant number, since it is smaller than the sum of its proper divisors (158099004868).

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

111240244220 is a wasteful number, since it uses less digits than its factorization.

111240244220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7031750 (or 7031748 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 111240244220 its reverse (22442042111), we get a palindrome (133682286331).

The spelling of 111240244220 in words is "one hundred eleven billion, two hundred forty million, two hundred forty-four thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 113 140 226 452 565 791 1130 1582 2260 3164 3955 7910 15820 7031621 14063242 28126484 35158105 49221347 70316210 98442694 140632420 196885388 246106735 492213470 794573173 984426940 1589146346 3178292692 3972865865 5562012211 7945731730 11124024422 15891463460 22248048844 27810061055 55620122110 111240244220