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120489385 = 524097877
BaseRepresentation
bin1110010111010…
…00010110101001
322101201111100211
413023220112221
5221321130020
615542301121
72662100002
oct713502651
9271644324
10120489385
1162016505
12344277a1
131bc688c3
14120061a9
15a8a085a
hex72e85a9

120489385 has 4 divisors (see below), whose sum is σ = 144587268. Its totient is φ = 96391504.

The previous prime is 120489371. The next prime is 120489401. The reversal of 120489385 is 583984021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 583984021 = 1151507371.

It can be written as a sum of positive squares in 2 ways, for example, as 78641424 + 41847961 = 8868^2 + 6469^2 .

It is a cyclic number.

It is not a de Polignac number, because 120489385 - 211 = 120487337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12048934 + ... + 12048943.

It is an arithmetic number, because the mean of its divisors is an integer number (36146817).

Almost surely, 2120489385 is an apocalyptic number.

It is an amenable number.

120489385 is a deficient number, since it is larger than the sum of its proper divisors (24097883).

120489385 is an equidigital number, since it uses as much as digits as its factorization.

120489385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24097882.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 120489385 is about 10976.7656894005. The cubic root of 120489385 is about 493.9120205344.

The spelling of 120489385 in words is "one hundred twenty million, four hundred eighty-nine thousand, three hundred eighty-five".

Divisors: 1 5 24097877 120489385