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120442146 = 23111824881
BaseRepresentation
bin1110010110111…
…00110100100010
322101122002120020
413023130310202
5221313122041
615541254310
72661512166
oct713346442
9271562506
10120442146
1161a93a70
1234404396
131bc50256
1411dd2ca6
15a891866
hex72dcd22

120442146 has 16 divisors (see below), whose sum is σ = 262783008. Its totient is φ = 36497600.

The previous prime is 120442111. The next prime is 120442171. The reversal of 120442146 is 641244021.

It is a happy 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, 912375 + ... + 912506.

It is an arithmetic number, because the mean of its divisors is an integer number (16423938).

Almost surely, 2120442146 is an apocalyptic number.

120442146 is an abundant number, since it is smaller than the sum of its proper divisors (142340862).

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

120442146 is a wasteful number, since it uses less digits than its factorization.

120442146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824897.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 120442146 is about 10974.6137061857. The cubic root of 120442146 is about 493.8474644748.

Adding to 120442146 its reverse (641244021), we get a palindrome (761686167).

The spelling of 120442146 in words is "one hundred twenty million, four hundred forty-two thousand, one hundred forty-six".

Divisors: 1 2 3 6 11 22 33 66 1824881 3649762 5474643 10949286 20073691 40147382 60221073 120442146