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28200325466 = 242133492073
BaseRepresentation
bin11010010000110111…
…101101000101011010
32200210022212222000202
4122100313231011122
5430223240403331
620542142502202
72015554545215
oct322067550532
980708788022
1028200325466
1110a61391a05
125570294962
13287558a221
14151741877c
15b00b36ecb
hex690ded15a

28200325466 has 8 divisors (see below), whose sum is σ = 42400965684. Its totient is φ = 14066670240.

The previous prime is 28200325379. The next prime is 28200325471. The reversal of 28200325466 is 66452300282.

It can be written as a sum of positive squares in 2 ways, for example, as 28182015625 + 18309841 = 167875^2 + 4279^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16745195 + ... + 16746878.

Almost surely, 228200325466 is an apocalyptic number.

28200325466 is a deficient number, since it is larger than the sum of its proper divisors (14200640218).

28200325466 is a wasteful number, since it uses less digits than its factorization.

28200325466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33492496.

The product of its (nonzero) digits is 138240, while the sum is 38.

The spelling of 28200325466 in words is "twenty-eight billion, two hundred million, three hundred twenty-five thousand, four hundred sixty-six".

Divisors: 1 2 421 842 33492073 66984146 14100162733 28200325466