Search a number
-
+
30286224 = 243423369
BaseRepresentation
bin111001110001…
…0000110010000
32002222200220000
41303202012100
530223124344
63001050000
7515300013
oct163420620
962880800
1030286224
1116106541
12a186900
136375357
14404537a
1529d3a69
hex1ce2190

30286224 has 50 divisors (see below), whose sum is σ = 87660870. Its totient is φ = 10094976.

The previous prime is 30286181. The next prime is 30286241. The reversal of 30286224 is 42268203.

30286224 is a `hidden beast` number, since 30 + 2 + 8 + 622 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 20250000 + 10036224 = 4500^2 + 3168^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 10389 + ... + 12980.

Almost surely, 230286224 is an apocalyptic number.

It is an amenable number.

30286224 is an abundant number, since it is smaller than the sum of its proper divisors (57374646).

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

30286224 is a wasteful number, since it uses less digits than its factorization.

30286224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23389 (or 23374 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 30286224 is about 5503.2921056400. The cubic root of 30286224 is about 311.7083072594.

The spelling of 30286224 in words is "thirty million, two hundred eighty-six thousand, two hundred twenty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 81 108 144 162 216 324 432 648 1296 23369 46738 70107 93476 140214 186952 210321 280428 373904 420642 560856 630963 841284 1121712 1261926 1682568 1892889 2523852 3365136 3785778 5047704 7571556 10095408 15143112 30286224