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8000073 = 33296299
BaseRepresentation
bin11110100001001001001001
3120001110001000
4132201021021
54022000243
6443245213
7124666554
oct36411111
916043030
108000073
114574634
122819809
131871493
1410c369b
15a805d3
hex7a1249

8000073 has 8 divisors (see below), whose sum is σ = 11852000. Its totient is φ = 5333364.

The previous prime is 8000071. The next prime is 8000087. The reversal of 8000073 is 3700008.

It is not a de Polignac number, because 8000073 - 21 = 8000071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8000071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148123 + ... + 148176.

It is an arithmetic number, because the mean of its divisors is an integer number (1481500).

Almost surely, 28000073 is an apocalyptic number.

It is an amenable number.

8000073 is a deficient number, since it is larger than the sum of its proper divisors (3851927).

8000073 is a wasteful number, since it uses less digits than its factorization.

8000073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296308 (or 296302 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 8000073 is about 2828.4400294155. The cubic root of 8000073 is about 200.0006083315. Note that the first 3 decimals are identical.

The spelling of 8000073 in words is "eight million, seventy-three", and thus it is an aban number and an uban number.

Divisors: 1 3 9 27 296299 888897 2666691 8000073