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120120103 = 199360271
BaseRepresentation
bin1110010100011…
…10001100100111
322101000201210201
413022032030213
5221222320403
615530331331
72656001245
oct712161447
9271021721
10120120103
1161894014
1234289b47
131bb697ac
1411d4b795
15a82b21d
hex728e327

120120103 has 4 divisors (see below), whose sum is σ = 120182368. Its totient is φ = 120057840.

The previous prime is 120120097. The next prime is 120120127. The reversal of 120120103 is 301021021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-120120103 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120120103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120120193) 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, 28143 + ... + 32128.

It is an arithmetic number, because the mean of its divisors is an integer number (30045592).

Almost surely, 2120120103 is an apocalyptic number.

120120103 is a deficient number, since it is larger than the sum of its proper divisors (62265).

120120103 is an equidigital number, since it uses as much as digits as its factorization.

120120103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62264.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 120120103 is about 10959.9317059916. The cubic root of 120120103 is about 493.4069152582.

Adding to 120120103 its reverse (301021021), we get a palindrome (421141124).

The spelling of 120120103 in words is "one hundred twenty million, one hundred twenty thousand, one hundred three".

Divisors: 1 1993 60271 120120103