Search a number
-
+
55283330531 = 11132163182443
BaseRepresentation
bin110011011111001001…
…001010110111100011
312021200210100011121102
4303133021022313203
51401210013034111
641221413345015
73664654361522
oct633711126743
9167623304542
1055283330531
1121499aa9520
12a86a33816b
1352a0510c00
1429662a64b9
15168861613b
hexcdf24ade3

55283330531 has 24 divisors (see below), whose sum is σ = 65706111936. Its totient is φ = 46106742240.

The previous prime is 55283330521. The next prime is 55283330539. The reversal of 55283330531 is 13503338255.

It is not a de Polignac number, because 55283330531 - 226 = 55216221667 is a prime.

It is a super-3 number, since 3×552833305313 (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55283330539) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 211796 + ... + 394238.

It is an arithmetic number, because the mean of its divisors is an integer number (2737754664).

Almost surely, 255283330531 is an apocalyptic number.

55283330531 is a deficient number, since it is larger than the sum of its proper divisors (10422781405).

55283330531 is a wasteful number, since it uses less digits than its factorization.

55283330531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182643 (or 182630 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 38.

Adding to 55283330531 its reverse (13503338255), we get a palindrome (68786668786).

The spelling of 55283330531 in words is "fifty-five billion, two hundred eighty-three million, three hundred thirty thousand, five hundred thirty-one".

Divisors: 1 11 13 143 163 169 1793 1859 2119 23309 27547 182443 303017 2006873 2371759 26089349 29738209 30832867 327120299 339161537 386596717 4252563887 5025757321 55283330531