Search a number
-
+
27403073420 = 2251678204513
BaseRepresentation
bin11001100001010110…
…011011011110001100
32121201202201100211012
4121201112123132030
5422110141322140
620331102544352
71660034165222
oct314126333614
977652640735
1027403073420
1110692358718
1253892980b8
13277935a058
14147d5a6b12
15aa5b54265
hex66159b78c

27403073420 has 24 divisors (see below), whose sum is σ = 57891050784. Its totient is φ = 10895591936.

The previous prime is 27403073339. The next prime is 27403073431. The reversal of 27403073420 is 2437030472.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4098917 + ... + 4105596.

It is an arithmetic number, because the mean of its divisors is an integer number (2412127116).

Almost surely, 227403073420 is an apocalyptic number.

27403073420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27403073420 is an abundant number, since it is smaller than the sum of its proper divisors (30487977364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27403073420 is a wasteful number, since it uses less digits than its factorization.

27403073420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8204689 (or 8204687 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 32.

The spelling of 27403073420 in words is "twenty-seven billion, four hundred three million, seventy-three thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 167 334 668 835 1670 3340 8204513 16409026 32818052 41022565 82045130 164090260 1370153671 2740307342 5480614684 6850768355 13701536710 27403073420