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74080073 = 83892531
BaseRepresentation
bin1000110101001…
…01111101001001
312011101122202102
410122211331021
5122431030243
611203443145
71556445614
oct432457511
9164348672
1074080073
11388a8501
12209864b5
1312469982
149ba517b
1567849b8
hex46a5f49

74080073 has 4 divisors (see below), whose sum is σ = 74972688. Its totient is φ = 73187460.

The previous prime is 74080057. The next prime is 74080087. The reversal of 74080073 is 37008047.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37008047 = 157123557.

It is a cyclic number.

It is not a de Polignac number, because 74080073 - 24 = 74080057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74080003) 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, 446183 + ... + 446348.

It is an arithmetic number, because the mean of its divisors is an integer number (18743172).

Almost surely, 274080073 is an apocalyptic number.

It is an amenable number.

74080073 is a deficient number, since it is larger than the sum of its proper divisors (892615).

74080073 is an equidigital number, since it uses as much as digits as its factorization.

74080073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892614.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 74080073 is about 8606.9781572861. The cubic root of 74080073 is about 419.9850202518.

The spelling of 74080073 in words is "seventy-four million, eighty thousand, seventy-three".

Divisors: 1 83 892531 74080073