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73368973 = 407917987
BaseRepresentation
bin1000101111110…
…00010110001101
312010001112022101
410113320112031
5122240301343
611140315101
71550424466
oct427702615
9163045271
1073368973
1138462217
12206a2a91
131227b0c2
149a5bd6d
156693e4d
hex45f858d

73368973 has 4 divisors (see below), whose sum is σ = 73391040. Its totient is φ = 73346908.

The previous prime is 73368961. The next prime is 73368983. The reversal of 73368973 is 37986337.

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: 37986337 = 139273283.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-73368973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73368913) 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, 4915 + ... + 13072.

It is an arithmetic number, because the mean of its divisors is an integer number (18347760).

Almost surely, 273368973 is an apocalyptic number.

It is an amenable number.

73368973 is a deficient number, since it is larger than the sum of its proper divisors (22067).

73368973 is a wasteful number, since it uses less digits than its factorization.

73368973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22066.

The product of its digits is 571536, while the sum is 46.

The square root of 73368973 is about 8565.5690412255. The cubic root of 73368973 is about 418.6368751227.

The spelling of 73368973 in words is "seventy-three million, three hundred sixty-eight thousand, nine hundred seventy-three".

Divisors: 1 4079 17987 73368973