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120102043 = 1071122449
BaseRepresentation
bin1110010100010…
…01110010011011
322100222211000211
413022021302123
5221221231133
615530111551
72655564505
oct712116233
9270884024
10120102043
1161881496
123427b5b7
131bb614c9
1411d44d75
15a825bcd
hex7289c9b

120102043 has 4 divisors (see below), whose sum is σ = 121224600. Its totient is φ = 118979488.

The previous prime is 120102013. The next prime is 120102077. The reversal of 120102043 is 340201021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340201021 = 595766119.

It is a cyclic number.

It is not a de Polignac number, because 120102043 - 217 = 119970971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120102013) 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, 561118 + ... + 561331.

It is an arithmetic number, because the mean of its divisors is an integer number (30306150).

Almost surely, 2120102043 is an apocalyptic number.

120102043 is a deficient number, since it is larger than the sum of its proper divisors (1122557).

120102043 is a wasteful number, since it uses less digits than its factorization.

120102043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122556.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 120102043 is about 10959.1077647772. The cubic root of 120102043 is about 493.3821861876.

Adding to 120102043 its reverse (340201021), we get a palindrome (460303064).

The spelling of 120102043 in words is "one hundred twenty million, one hundred two thousand, forty-three".

Divisors: 1 107 1122449 120102043