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61072079 is a prime number
BaseRepresentation
bin1110100011111…
…0001011001111
311020220210010212
43220332023033
5111113301304
610020553035
71341050465
oct350761317
9136823125
1061072079
11315233a2
121855277b
13c863c33
14817a835
15556566e
hex3a3e2cf

61072079 has 2 divisors, whose sum is σ = 61072080. Its totient is φ = 61072078.

The previous prime is 61072043. The next prime is 61072087. The reversal of 61072079 is 97027016.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61072079 - 28 = 61071823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61072009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30536039 + 30536040.

It is an arithmetic number, because the mean of its divisors is an integer number (30536040).

Almost surely, 261072079 is an apocalyptic number.

61072079 is a deficient number, since it is larger than the sum of its proper divisors (1).

61072079 is an equidigital number, since it uses as much as digits as its factorization.

61072079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 61072079 is about 7814.8626987299. The cubic root of 61072079 is about 393.8047057946.

The spelling of 61072079 in words is "sixty-one million, seventy-two thousand, seventy-nine".