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72048049 is a prime number
BaseRepresentation
bin1000100101101…
…01110110110001
312000120102100021
410102311312301
5121421014144
611052123441
71533253423
oct422656661
9160512307
1072048049
113773a847
1220166581
1311c07aa8
1497d6813
1564d2884
hex44b5db1

72048049 has 2 divisors, whose sum is σ = 72048050. Its totient is φ = 72048048.

The previous prime is 72048043. The next prime is 72048073. The reversal of 72048049 is 94084027.

It is a happy number.

72048049 is nontrivially palindromic in base 3.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64513024 + 7535025 = 8032^2 + 2745^2 .

It is an emirp because it is prime and its reverse (94084027) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72048049 - 219 = 71523761 is a prime.

It is not a weakly prime, because it can be changed into another prime (72048043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36024024 + 36024025.

It is an arithmetic number, because the mean of its divisors is an integer number (36024025).

Almost surely, 272048049 is an apocalyptic number.

It is an amenable number.

72048049 is a deficient number, since it is larger than the sum of its proper divisors (1).

72048049 is an equidigital number, since it uses as much as digits as its factorization.

72048049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 72048049 is about 8488.1122165061. The cubic root of 72048049 is about 416.1092865761.

The spelling of 72048049 in words is "seventy-two million, forty-eight thousand, forty-nine".