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3120120101 = 7445731443
BaseRepresentation
bin1011100111111001…
…0100000100100101
322001110001112010202
42321332110010211
522342222320401
61233335000245
7140214404030
oct27176240445
98043045122
103120120101
11136125445a
12730b09085
133a9551017
14218554017
15133dc006b
hexb9f94125

3120120101 has 4 divisors (see below), whose sum is σ = 3565851552. Its totient is φ = 2674388652.

The previous prime is 3120120077. The next prime is 3120120161. The reversal of 3120120101 is 1010210213.

3120120101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1010210213 = 5917122207.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3120120101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3120120161) 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, 222865715 + ... + 222865728.

It is an arithmetic number, because the mean of its divisors is an integer number (891462888).

Almost surely, 23120120101 is an apocalyptic number.

It is an amenable number.

3120120101 is a deficient number, since it is larger than the sum of its proper divisors (445731451).

3120120101 is an equidigital number, since it uses as much as digits as its factorization.

3120120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445731450.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 3120120101 is about 55858.0352411361. The cubic root of 3120120101 is about 1461.2474640410.

Adding to 3120120101 its reverse (1010210213), we get a palindrome (4130330314).

The spelling of 3120120101 in words is "three billion, one hundred twenty million, one hundred twenty thousand, one hundred one".

Divisors: 1 7 445731443 3120120101