Search a number
-
+
219053185 = 51319832137
BaseRepresentation
bin11010000111001…
…11110010000001
3120021012001110221
431003213302001
5422034200220
633423023041
75266631011
oct1503476201
9507161427
10219053185
1110271699a
126143aa81
13364c8790
1421141c41
151436e9aa
hexd0e7c81

219053185 has 32 divisors (see below), whose sum is σ = 301714560. Its totient is φ = 151331328.

The previous prime is 219053167. The next prime is 219053189. The reversal of 219053185 is 581350912.

It is a cyclic number.

It is not a de Polignac number, because 219053185 - 27 = 219053057 is a prime.

It is a super-3 number, since 3×2190531853 (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 219053185.

It is not an unprimeable number, because it can be changed into a prime (219053189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101437 + ... + 103573.

It is an arithmetic number, because the mean of its divisors is an integer number (9428580).

Almost surely, 2219053185 is an apocalyptic number.

It is an amenable number.

219053185 is a deficient number, since it is larger than the sum of its proper divisors (82661375).

219053185 is a wasteful number, since it uses less digits than its factorization.

219053185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2257.

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 219053185 is about 14800.4454324861. The cubic root of 219053185 is about 602.8138066734.

The spelling of 219053185 in words is "two hundred nineteen million, fifty-three thousand, one hundred eighty-five".

Divisors: 1 5 13 19 65 83 95 247 415 1079 1235 1577 2137 5395 7885 10685 20501 27781 40603 102505 138905 177371 203015 527839 886855 2305823 2639195 3370049 11529115 16850245 43810637 219053185