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73012071 = 3112212487
BaseRepresentation
bin1000101101000…
…01001101100111
312002101101201210
410112201031213
5122142341241
611124522503
71544410116
oct426411547
9162341653
1073012071
1138239060
1220550433
1312184812
1499a7c7d
156623316
hex45a1367

73012071 has 8 divisors (see below), whose sum is σ = 106199424. Its totient is φ = 44249720.

The previous prime is 73012031. The next prime is 73012091. The reversal of 73012071 is 17021037.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73012071 - 29 = 73011559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73012001) 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 in 7 ways as a sum of consecutive naturals, for example, 1106211 + ... + 1106276.

It is an arithmetic number, because the mean of its divisors is an integer number (13274928).

Almost surely, 273012071 is an apocalyptic number.

73012071 is a deficient number, since it is larger than the sum of its proper divisors (33187353).

73012071 is a wasteful number, since it uses less digits than its factorization.

73012071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2212501.

The product of its (nonzero) digits is 294, while the sum is 21.

The square root of 73012071 is about 8544.7101179619. The cubic root of 73012071 is about 417.9569543518.

The spelling of 73012071 in words is "seventy-three million, twelve thousand, seventy-one".

Divisors: 1 3 11 33 2212487 6637461 24337357 73012071