Search a number
-
+
55834215 = 3561139439
BaseRepresentation
bin1101010011111…
…1011001100111
310220001200010220
43110333121213
5103243143330
65312415423
71245403653
oct324773147
9126050126
1055834215
1129576088
1216847573
13b74bac8
1475b5a63
154d7d710
hex353f667

55834215 has 32 divisors (see below), whose sum is σ = 91660800. Its totient is φ = 29013120.

The previous prime is 55834211. The next prime is 55834223. The reversal of 55834215 is 51243855.

It is not a de Polignac number, because 55834215 - 22 = 55834211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55834211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126966 + ... + 127404.

It is an arithmetic number, because the mean of its divisors is an integer number (2864400).

Almost surely, 255834215 is an apocalyptic number.

55834215 is a deficient number, since it is larger than the sum of its proper divisors (35826585).

55834215 is a wasteful number, since it uses less digits than its factorization.

55834215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647.

The product of its digits is 24000, while the sum is 33.

The square root of 55834215 is about 7472.2295869439. The cubic root of 55834215 is about 382.2083213570.

The spelling of 55834215 in words is "fifty-five million, eight hundred thirty-four thousand, two hundred fifteen".

Divisors: 1 3 5 15 61 139 183 305 417 439 695 915 1317 2085 2195 6585 8479 25437 26779 42395 61021 80337 127185 133895 183063 305105 401685 915315 3722281 11166843 18611405 55834215