Search a number
-
+
30255432 = 2331260643
BaseRepresentation
bin111001101101…
…0100101001000
32002221010122120
41303122211020
530221133212
63000251240
7515111154
oct163324510
962833576
1030255432
1116095399
12a170b20
13636432c
144038064
1529c988c
hex1cda948

30255432 has 16 divisors (see below), whose sum is σ = 75638640. Its totient is φ = 10085136.

The previous prime is 30255413. The next prime is 30255479. The reversal of 30255432 is 23455203.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 1260643 = 30255432 / (3 + 0 + 2 + 5 + 5 + 4 + 3 + 2).

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, 630298 + ... + 630345.

It is an arithmetic number, because the mean of its divisors is an integer number (4727415).

Almost surely, 230255432 is an apocalyptic number.

It is an amenable number.

30255432 is an abundant number, since it is smaller than the sum of its proper divisors (45383208).

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

30255432 is a wasteful number, since it uses less digits than its factorization.

30255432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260652 (or 1260648 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 30255432 is about 5500.4937960150. The cubic root of 30255432 is about 311.6026335067.

The spelling of 30255432 in words is "thirty million, two hundred fifty-five thousand, four hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 24 1260643 2521286 3781929 5042572 7563858 10085144 15127716 30255432