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120130201 = 169370957
BaseRepresentation
bin1110010100100…
…00101010011001
322101001020122201
413022100222121
5221223131301
615530450201
72656042552
oct712205231
9271036581
10120130201
11618a0664
1234293961
131bb71279
1411d51329
15a82e201
hex7290a99

120130201 has 4 divisors (see below), whose sum is σ = 120202852. Its totient is φ = 120057552.

The previous prime is 120130193. The next prime is 120130229. The reversal of 120130201 is 102031021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102031021 = 428923789.

It can be written as a sum of positive squares in 2 ways, for example, as 33918976 + 86211225 = 5824^2 + 9285^2 .

It is a cyclic number.

It is not a de Polignac number, because 120130201 - 23 = 120130193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120130271) 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, 33786 + ... + 37171.

It is an arithmetic number, because the mean of its divisors is an integer number (30050713).

Almost surely, 2120130201 is an apocalyptic number.

It is an amenable number.

120130201 is a deficient number, since it is larger than the sum of its proper divisors (72651).

120130201 is an equidigital number, since it uses as much as digits as its factorization.

120130201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72650.

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

The square root of 120130201 is about 10960.3923743632. The cubic root of 120130201 is about 493.4207410966.

Adding to 120130201 its reverse (102031021), we get a palindrome (222161222).

It can be divided in two parts, 120 and 130201, that added together give a 4-th power (130321 = 194).

The spelling of 120130201 in words is "one hundred twenty million, one hundred thirty thousand, two hundred one".

Divisors: 1 1693 70957 120130201