Search a number
-
+
530640468 = 223243342791
BaseRepresentation
bin11111101000001…
…110111001010100
31100222111022212200
4133220032321110
52041320443333
6124353244500
716102240521
oct3750167124
91328438780
10530640468
11252595046
12129863730
1385c22757
1450690148
15318bbc13
hex1fa0ee54

530640468 has 36 divisors (see below), whose sum is σ = 1372539168. Its totient is φ = 172766160.

The previous prime is 530640443. The next prime is 530640479. The reversal of 530640468 is 864046035.

530640468 is a `hidden beast` number, since 5 + 3 + 0 + 640 + 4 + 6 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 169848 + ... + 172943.

It is an arithmetic number, because the mean of its divisors is an integer number (38126088).

Almost surely, 2530640468 is an apocalyptic number.

It is an amenable number.

530640468 is an abundant number, since it is smaller than the sum of its proper divisors (841898700).

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

530640468 is a wasteful number, since it uses less digits than its factorization.

530640468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342844 (or 342839 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 530640468 is about 23035.6347427198. The cubic root of 530640468 is about 809.5930832215.

The spelling of 530640468 in words is "five hundred thirty million, six hundred forty thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 43 86 129 172 258 387 516 774 1548 342791 685582 1028373 1371164 2056746 3085119 4113492 6170238 12340476 14740013 29480026 44220039 58960052 88440078 132660117 176880156 265320234 530640468