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120002011 = 281942569
BaseRepresentation
bin1110010011100…
…01010111011011
322100210201210221
413021301113123
5221210031021
615524020511
72655000043
oct711612733
9270721727
10120002011
1161813318
1234231737
131bb27b0c
1411d1a723
15a806241
hex72715db

120002011 has 4 divisors (see below), whose sum is σ = 120047400. Its totient is φ = 119956624.

The previous prime is 120001939. The next prime is 120002021. The reversal of 120002011 is 110200021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120002011 - 27 = 120001883 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120001985 and 120002003.

It is not an unprimeable number, because it can be changed into a prime (120002021) 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, 18466 + ... + 24103.

It is an arithmetic number, because the mean of its divisors is an integer number (30011850).

Almost surely, 2120002011 is an apocalyptic number.

120002011 is a deficient number, since it is larger than the sum of its proper divisors (45389).

120002011 is an equidigital number, since it uses as much as digits as its factorization.

120002011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45388.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 120002011 is about 10954.5429388907. The cubic root of 120002011 is about 493.2451701576.

Adding to 120002011 its reverse (110200021), we get a palindrome (230202032).

The spelling of 120002011 in words is "one hundred twenty million, two thousand, eleven".

Divisors: 1 2819 42569 120002011