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120885287 is a prime number
BaseRepresentation
bin1110011010010…
…01000000100111
322102110121102212
413031021000213
5221421312122
615554554035
72665336145
oct715110047
9272417385
10120885287
11622669a6
123459891b
131c076b73
14120aa595
15a92cce2
hex7349027

120885287 has 2 divisors, whose sum is σ = 120885288. Its totient is φ = 120885286.

The previous prime is 120885223. The next prime is 120885313. The reversal of 120885287 is 782588021.

It is a strong prime.

It is an emirp because it is prime and its reverse (782588021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120885287 - 26 = 120885223 is a prime.

It is a super-2 number, since 2×1208852872 = 29226505226144738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120885887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60442643 + 60442644.

It is an arithmetic number, because the mean of its divisors is an integer number (60442644).

Almost surely, 2120885287 is an apocalyptic number.

120885287 is a deficient number, since it is larger than the sum of its proper divisors (1).

120885287 is an equidigital number, since it uses as much as digits as its factorization.

120885287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 71680, while the sum is 41.

The square root of 120885287 is about 10994.7845363154. The cubic root of 120885287 is about 494.4523917289.

The spelling of 120885287 in words is "one hundred twenty million, eight hundred eighty-five thousand, two hundred eighty-seven".