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120214387 = 196327073
BaseRepresentation
bin1110010101001…
…01001101110011
322101012112010201
413022211031303
5221233330022
615532340031
72656543156
oct712451563
9271175121
10120214387
1161948937
1234314617
131bba0697
1411d73c9d
15a849127
hex72a5373

120214387 has 4 divisors (see below), whose sum is σ = 126541480. Its totient is φ = 113887296.

The previous prime is 120214363. The next prime is 120214403. The reversal of 120214387 is 783412021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 783412021 = 7111916003.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-120214387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120214357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3163518 + ... + 3163555.

It is an arithmetic number, because the mean of its divisors is an integer number (31635370).

Almost surely, 2120214387 is an apocalyptic number.

120214387 is a deficient number, since it is larger than the sum of its proper divisors (6327093).

120214387 is an equidigital number, since it uses as much as digits as its factorization.

120214387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6327092.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 120214387 is about 10964.2321664584. The cubic root of 120214387 is about 493.5359755632.

The spelling of 120214387 in words is "one hundred twenty million, two hundred fourteen thousand, three hundred eighty-seven".

Divisors: 1 19 6327073 120214387