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120320401 = 409129411
BaseRepresentation
bin1110010101111…
…11000110010001
322101101220120011
413022333012101
5221300223101
615534514521
72660464225
oct712770621
9271356504
10120320401
1161a10553
1234365a41
131bc09a06
1411da0785
15a86a751
hex72bf191

120320401 has 4 divisors (see below), whose sum is σ = 120353904. Its totient is φ = 120286900.

The previous prime is 120320381. The next prime is 120320437. The reversal of 120320401 is 104023021.

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.

It is a cyclic number.

It is not a de Polignac number, because 120320401 - 211 = 120318353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120324401) 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, 10615 + ... + 18796.

It is an arithmetic number, because the mean of its divisors is an integer number (30088476).

Almost surely, 2120320401 is an apocalyptic number.

It is an amenable number.

120320401 is a deficient number, since it is larger than the sum of its proper divisors (33503).

120320401 is an equidigital number, since it uses as much as digits as its factorization.

120320401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33502.

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

The square root of 120320401 is about 10969.0656393332. The cubic root of 120320401 is about 493.6810118642.

Adding to 120320401 its reverse (104023021), we get a palindrome (224343422).

The spelling of 120320401 in words is "one hundred twenty million, three hundred twenty thousand, four hundred one".

Divisors: 1 4091 29411 120320401