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19141201 = 171125953
BaseRepresentation
bin100100100000…
…1001001010001
31100000110210101
41021001021101
514400004301
61522132401
7321461152
oct111011121
940013711
1019141201
11a894082
1264b1101
133c72571
142783929
151a31701
hex1241251

19141201 has 4 divisors (see below), whose sum is σ = 20267172. Its totient is φ = 18015232.

The previous prime is 19141159. The next prime is 19141207. The reversal of 19141201 is 10214191.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14814801 + 4326400 = 3849^2 + 2080^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-19141201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19141207) 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, 562960 + ... + 562993.

It is an arithmetic number, because the mean of its divisors is an integer number (5066793).

Almost surely, 219141201 is an apocalyptic number.

It is an amenable number.

19141201 is a deficient number, since it is larger than the sum of its proper divisors (1125971).

19141201 is a wasteful number, since it uses less digits than its factorization.

19141201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125970.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 19141201 is about 4375.0658280762. The cubic root of 19141201 is about 267.4995533809.

Adding to 19141201 its reverse (10214191), we get a palindrome (29355392).

The spelling of 19141201 in words is "nineteen million, one hundred forty-one thousand, two hundred one".

Divisors: 1 17 1125953 19141201