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572408405 = 5114481681
BaseRepresentation
bin100010000111100…
…100001001010101
31110220002100201022
4202013210021111
52133014032110
6132444410525
720120251112
oct4207441125
91426070638
10572408405
112741229a8
1213b846a45
1391787bca
1456043909
15353bc755
hex221e4255

572408405 has 4 divisors (see below), whose sum is σ = 686890092. Its totient is φ = 457926720.

The previous prime is 572408399. The next prime is 572408407. The reversal of 572408405 is 504804275.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 395890609 + 176517796 = 19897^2 + 13286^2 .

It is a de Polignac number, because none of the positive numbers 2k-572408405 is a prime.

It is a super-2 number, since 2×5724084052 = 655302764229288050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (572408407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57240836 + ... + 57240845.

It is an arithmetic number, because the mean of its divisors is an integer number (171722523).

Almost surely, 2572408405 is an apocalyptic number.

It is an amenable number.

572408405 is a deficient number, since it is larger than the sum of its proper divisors (114481687).

572408405 is a wasteful number, since it uses less digits than its factorization.

572408405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114481686.

The product of its (nonzero) digits is 44800, while the sum is 35.

The square root of 572408405 is about 23925.0580981531. The cubic root of 572408405 is about 830.3005661326.

The spelling of 572408405 in words is "five hundred seventy-two million, four hundred eight thousand, four hundred five".

Divisors: 1 5 114481681 572408405