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120155663 is a prime number
BaseRepresentation
bin1110010100101…
…10111000001111
322101002112120202
413022112320033
5221224440123
615531204115
72656210025
oct712267017
9271075522
10120155663
1161908801
12342a663b
131bb7ca34
1411d5a715
15a836a28
hex7296e0f

120155663 has 2 divisors, whose sum is σ = 120155664. Its totient is φ = 120155662.

The previous prime is 120155653. The next prime is 120155741. The reversal of 120155663 is 366551021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120155663 - 26 = 120155599 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120155653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60077831 + 60077832.

It is an arithmetic number, because the mean of its divisors is an integer number (60077832).

Almost surely, 2120155663 is an apocalyptic number.

120155663 is a deficient number, since it is larger than the sum of its proper divisors (1).

120155663 is an equidigital number, since it uses as much as digits as its factorization.

120155663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 120155663 is about 10961.5538588286. The cubic root of 120155663 is about 493.4555993623.

The spelling of 120155663 in words is "one hundred twenty million, one hundred fifty-five thousand, six hundred sixty-three".