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120140220 = 22352002337
BaseRepresentation
bin1110010100100…
…11000110111100
322101001202101210
413022103012330
5221223441340
615531004420
72656114014
oct712230674
9271052353
10120140220
11618a8142
1234299710
131bb759b5
1411d54c44
15a832180
hex72931bc

120140220 has 24 divisors (see below), whose sum is σ = 336392784. Its totient is φ = 32037376.

The previous prime is 120140219. The next prime is 120140239. The reversal of 120140220 is 22041021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 120140196 and 120140205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1001109 + ... + 1001228.

It is an arithmetic number, because the mean of its divisors is an integer number (14016366).

Almost surely, 2120140220 is an apocalyptic number.

120140220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120140220 is an abundant number, since it is smaller than the sum of its proper divisors (216252564).

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

120140220 is a wasteful number, since it uses less digits than its factorization.

120140220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002349 (or 2002347 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 120140220 is about 10960.8494196390. The cubic root of 120140220 is about 493.4344580053.

Adding to 120140220 its reverse (22041021), we get a palindrome (142181241).

The spelling of 120140220 in words is "one hundred twenty million, one hundred forty thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 2002337 4004674 6007011 8009348 10011685 12014022 20023370 24028044 30035055 40046740 60070110 120140220