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72160201 is a prime number
BaseRepresentation
bin1000100110100…
…01001111001001
312000210010012001
410103101033021
5121433111301
611054351001
71534231411
oct423211711
9160703161
1072160201
1137807033
12201bb461
1311c46b59
149825641
156505c01
hex44d13c9

72160201 has 2 divisors, whose sum is σ = 72160202. Its totient is φ = 72160200.

The previous prime is 72160169. The next prime is 72160217. The reversal of 72160201 is 10206127.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62425801 + 9734400 = 7901^2 + 3120^2 .

It is a cyclic number.

It is not a de Polignac number, because 72160201 - 25 = 72160169 is a prime.

It is not a weakly prime, because it can be changed into another prime (72160601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36080100 + 36080101.

It is an arithmetic number, because the mean of its divisors is an integer number (36080101).

Almost surely, 272160201 is an apocalyptic number.

It is an amenable number.

72160201 is a deficient number, since it is larger than the sum of its proper divisors (1).

72160201 is an equidigital number, since it uses as much as digits as its factorization.

72160201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 72160201 is about 8494.7160635303. The cubic root of 72160201 is about 416.3250837450.

Adding to 72160201 its reverse (10206127), we get a palindrome (82366328).

It can be divided in two parts, 72160 and 201, that added together give a square (72361 = 2692).

The spelling of 72160201 in words is "seventy-two million, one hundred sixty thousand, two hundred one".