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120166433 = 809148537
BaseRepresentation
bin1110010100110…
…01100000100001
322101010002100122
413022121200201
5221230311213
615531330025
72656253312
oct712314041
9271102318
10120166433
1161915902
12342b0915
131bb848ca
1411d60609
15a839d08
hex7299821

120166433 has 4 divisors (see below), whose sum is σ = 120315780. Its totient is φ = 120017088.

The previous prime is 120166411. The next prime is 120166439. The reversal of 120166433 is 334661021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 334661021 = 3171055713.

It can be written as a sum of positive squares in 2 ways, for example, as 40742689 + 79423744 = 6383^2 + 8912^2 .

It is a cyclic number.

It is not a de Polignac number, because 120166433 - 28 = 120166177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (120166439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73460 + ... + 75077.

It is an arithmetic number, because the mean of its divisors is an integer number (30078945).

Almost surely, 2120166433 is an apocalyptic number.

It is an amenable number.

120166433 is a deficient number, since it is larger than the sum of its proper divisors (149347).

120166433 is an equidigital number, since it uses as much as digits as its factorization.

120166433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149346.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 120166433 is about 10962.0451102885. The cubic root of 120166433 is about 493.4703423435.

The spelling of 120166433 in words is "one hundred twenty million, one hundred sixty-six thousand, four hundred thirty-three".

Divisors: 1 809 148537 120166433