Search a number
-
+
557379272 = 231724912
BaseRepresentation
bin100001001110001…
…110111011001000
31102211210210121202
4201032032323020
52120142114042
6131150323332
716545434312
oct4116167310
91384723552
10557379272
1126669832a
121367b9548
138b625228
14540507b2
1533dee632
hex2138eec8

557379272 has 36 divisors (see below), whose sum is σ = 1112443665. Its totient is φ = 261761920.

The previous prime is 557379271. The next prime is 557379281. The reversal of 557379272 is 272973755.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 510127396 + 47251876 = 22586^2 + 6874^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=16694.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (557379271) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1134947 + ... + 1135437.

Almost surely, 2557379272 is an apocalyptic number.

It is an amenable number.

557379272 is a deficient number, since it is larger than the sum of its proper divisors (555064393).

557379272 is an equidigital number, since it uses as much as digits as its factorization.

557379272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022 (or 510 counting only the distinct ones).

The product of its digits is 926100, while the sum is 47.

The square root of 557379272 is about 23608.8812102564. The cubic root of 557379272 is about 822.9692432404.

The spelling of 557379272 in words is "five hundred fifty-seven million, three hundred seventy-nine thousand, two hundred seventy-two".

Divisors: 1 2 4 8 17 34 68 136 289 491 578 982 1156 1964 2312 3928 8347 16694 33388 66776 141899 241081 283798 482162 567596 964324 1135192 1928648 4098377 8196754 16393508 32787016 69672409 139344818 278689636 557379272