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120020158 = 231832281
BaseRepresentation
bin1110010011101…
…01110010111110
322100211122201001
413021311302332
5221211121113
615524240514
72655103666
oct711656276
9270748631
10120020158
1161825a15
123424013a
131bb3315b
1411d231a6
15a80b7dd
hex7275cbe

120020158 has 24 divisors (see below), whose sum is σ = 188773056. Its totient is φ = 57170400.

The previous prime is 120020129. The next prime is 120020171. The reversal of 120020158 is 851020021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 426978 + ... + 427258.

It is an arithmetic number, because the mean of its divisors is an integer number (7865544).

Almost surely, 2120020158 is an apocalyptic number.

120020158 is a deficient number, since it is larger than the sum of its proper divisors (68752898).

120020158 is an equidigital number, since it uses as much as digits as its factorization.

120020158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480 (or 397 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 120020158 is about 10955.3711940764. The cubic root of 120020158 is about 493.2700321547.

Adding to 120020158 its reverse (851020021), we get a palindrome (971040179).

The spelling of 120020158 in words is "one hundred twenty million, twenty thousand, one hundred fifty-eight".

Divisors: 1 2 31 62 83 166 281 562 2573 5146 6889 8711 13778 17422 23323 46646 213559 427118 723013 1446026 1935809 3871618 60010079 120020158