Search a number
-
+
572505232 = 241323311813
BaseRepresentation
bin100010000111111…
…011110010010000
31110220021021112111
4202013323302100
52133030131412
6132450435104
720121133315
oct4207736220
91426237474
10572505232
11274189722
1213b892a94
13917bccc0
145606ad0c
15353db2a7
hex221fbc90

572505232 has 40 divisors (see below), whose sum is σ = 1199782584. Its totient is φ = 263076864.

The previous prime is 572505203. The next prime is 572505251. The reversal of 572505232 is 232505275.

It can be written as a sum of positive squares in 4 ways, for example, as 147456 + 572357776 = 384^2 + 23924^2 .

It is a junction number, because it is equal to n+sod(n) for n = 572505194 and 572505203.

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, 42558 + ... + 54370.

Almost surely, 2572505232 is an apocalyptic number.

572505232 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 572505232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (599891292).

572505232 is an abundant number, since it is smaller than the sum of its proper divisors (627277352).

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

572505232 is a wasteful number, since it uses less digits than its factorization.

572505232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12067 (or 12061 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 31.

The square root of 572505232 is about 23927.0815604411. The cubic root of 572505232 is about 830.3473805979.

The spelling of 572505232 in words is "five hundred seventy-two million, five hundred five thousand, two hundred thirty-two".

Divisors: 1 2 4 8 13 16 26 52 104 208 233 466 932 1864 3029 3728 6058 11813 12116 23626 24232 47252 48464 94504 153569 189008 307138 614276 1228552 2457104 2752429 5504858 11009716 22019432 35781577 44038864 71563154 143126308 286252616 572505232