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120201401 = 241498761
BaseRepresentation
bin1110010101000…
…10000010111001
322101011212022202
413022202002321
5221232421101
615532155545
72656460255
oct712420271
9271155282
10120201401
116193a101
1234308bb5
131bb977b8
1411d6d265
15a84536b
hex72a20b9

120201401 has 4 divisors (see below), whose sum is σ = 120700404. Its totient is φ = 119702400.

The previous prime is 120201397. The next prime is 120201409. The reversal of 120201401 is 104102021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104102021 = 293355297.

It can be written as a sum of positive squares in 2 ways, for example, as 62805625 + 57395776 = 7925^2 + 7576^2 .

It is a cyclic number.

It is not a de Polignac number, because 120201401 - 22 = 120201397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120201409) 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, 249140 + ... + 249621.

It is an arithmetic number, because the mean of its divisors is an integer number (30175101).

Almost surely, 2120201401 is an apocalyptic number.

It is an amenable number.

120201401 is a deficient number, since it is larger than the sum of its proper divisors (499003).

120201401 is an equidigital number, since it uses as much as digits as its factorization.

120201401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499002.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 120201401 is about 10963.6399521327. The cubic root of 120201401 is about 493.5182037332.

Adding to 120201401 its reverse (104102021), we get a palindrome (224303422).

The spelling of 120201401 in words is "one hundred twenty million, two hundred one thousand, four hundred one".

Divisors: 1 241 498761 120201401