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120320238 = 2331646883
BaseRepresentation
bin1110010101111…
…11000011101110
322101101220100010
413022333003232
5221300221423
615534514050
72660463603
oct712770356
9271356303
10120320238
1161a10415
1234365926
131bc0990c
1411da06aa
15a86a693
hex72bf0ee

120320238 has 16 divisors (see below), whose sum is σ = 248403456. Its totient is φ = 38812920.

The previous prime is 120320227. The next prime is 120320251. The reversal of 120320238 is 832023021.

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 7 ways as a sum of consecutive naturals, for example, 323256 + ... + 323627.

It is an arithmetic number, because the mean of its divisors is an integer number (15525216).

Almost surely, 2120320238 is an apocalyptic number.

120320238 is an abundant number, since it is smaller than the sum of its proper divisors (128083218).

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

120320238 is a wasteful number, since it uses less digits than its factorization.

120320238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646919.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 120320238 is about 10969.0582093450. The cubic root of 120320238 is about 493.6807889315.

Adding to 120320238 its reverse (832023021), we get a palindrome (952343259).

The spelling of 120320238 in words is "one hundred twenty million, three hundred twenty thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 31 62 93 186 646883 1293766 1940649 3881298 20053373 40106746 60160119 120320238