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72049711 is a prime number
BaseRepresentation
bin1000100101101…
…10010000101111
312000120111121211
410102312100233
5121421042321
611052135251
71533261316
oct422662057
9160514554
1072049711
1137741018
1220167527
1311c08786
1497d727d
1564d30e1
hex44b642f

72049711 has 2 divisors, whose sum is σ = 72049712. Its totient is φ = 72049710.

The previous prime is 72049709. The next prime is 72049753. The reversal of 72049711 is 11794027.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72049711 - 21 = 72049709 is a prime.

Together with 72049709, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72049781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36024855 + 36024856.

It is an arithmetic number, because the mean of its divisors is an integer number (36024856).

Almost surely, 272049711 is an apocalyptic number.

72049711 is a deficient number, since it is larger than the sum of its proper divisors (1).

72049711 is an equidigital number, since it uses as much as digits as its factorization.

72049711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 72049711 is about 8488.2101175690. The cubic root of 72049711 is about 416.1124861460.

The spelling of 72049711 in words is "seventy-two million, forty-nine thousand, seven hundred eleven".