Search a number
-
+
572057172 = 223215890477
BaseRepresentation
bin100010000110001…
…110011001010100
31110212102111220200
4202012032121110
52132421312142
6132433100500
720114256111
oct4206163124
91425374820
10572057172
11273a03025
1213b6b7730
139169408b
1455d91908
153534d64c
hex2218e654

572057172 has 18 divisors (see below), whose sum is σ = 1446033498. Its totient is φ = 190685712.

The previous prime is 572057119. The next prime is 572057183. The reversal of 572057172 is 271750275.

It can be written as a sum of positive squares in only one way, i.e., 462938256 + 109118916 = 21516^2 + 10446^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 15890477 = 572057172 / (5 + 7 + 2 + 0 + 5 + 7 + 1 + 7 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7945203 + ... + 7945274.

Almost surely, 2572057172 is an apocalyptic number.

It is an amenable number.

572057172 is an abundant number, since it is smaller than the sum of its proper divisors (873976326).

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

572057172 is a wasteful number, since it uses less digits than its factorization.

572057172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15890487 (or 15890482 counting only the distinct ones).

The product of its (nonzero) digits is 34300, while the sum is 36.

The square root of 572057172 is about 23917.7166970428. The cubic root of 572057172 is about 830.1307056944.

The spelling of 572057172 in words is "five hundred seventy-two million, fifty-seven thousand, one hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 36 15890477 31780954 47671431 63561908 95342862 143014293 190685724 286028586 572057172