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73007 = 116637
BaseRepresentation
bin10001110100101111
310201010222
4101310233
54314012
61321555
7422564
oct216457
9121128
1073007
114a940
12362bb
13272cc
141c86b
1516972
hex11d2f

73007 has 4 divisors (see below), whose sum is σ = 79656. Its totient is φ = 66360.

The previous prime is 72997. The next prime is 73009. The reversal of 73007 is 70037.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70037 = 116367.

It is a cyclic number.

It is not a de Polignac number, because 73007 - 210 = 71983 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 (73009) 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, 3308 + ... + 3329.

It is an arithmetic number, because the mean of its divisors is an integer number (19914).

273007 is an apocalyptic number.

73007 is a deficient number, since it is larger than the sum of its proper divisors (6649).

73007 is a wasteful number, since it uses less digits than its factorization.

73007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6648.

The product of its (nonzero) digits is 147, while the sum is 17.

The square root of 73007 is about 270.1980754928. The cubic root of 73007 is about 41.7947277830.

The spelling of 73007 in words is "seventy-three thousand, seven", and thus it is an iban number.

Divisors: 1 11 6637 73007