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120000442 = 2316912801
BaseRepresentation
bin1110010011100…
…00111110111010
322100210122122211
413021300332322
5221210003232
615524005334
72654662342
oct711607672
9270718584
10120000442
1161812121
123423084a
131bb271a3
1411d19d22
15a805a47
hex7270fba

120000442 has 16 divisors (see below), whose sum is σ = 186142464. Its totient is φ = 57960000.

The previous prime is 120000403. The next prime is 120000449. The reversal of 120000442 is 244000021.

It is not an unprimeable number, because it can be changed into a prime (120000449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41442 + ... + 44242.

It is an arithmetic number, because the mean of its divisors is an integer number (11633904).

Almost surely, 2120000442 is an apocalyptic number.

120000442 is a deficient number, since it is larger than the sum of its proper divisors (66142022).

120000442 is a wasteful number, since it uses less digits than its factorization.

120000442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3525.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 120000442 is about 10954.4713245323. The cubic root of 120000442 is about 493.2430204574.

Adding to 120000442 its reverse (244000021), we get a palindrome (364000463).

The spelling of 120000442 in words is "one hundred twenty million, four hundred forty-two", and thus it is an aban number.

Divisors: 1 2 31 62 691 1382 2801 5602 21421 42842 86831 173662 1935491 3870982 60000221 120000442