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219057093 = 32431274457
BaseRepresentation
bin11010000111010…
…00101111000101
3120021012020211200
431003220233011
5422034311333
633423053113
75266645263
oct1503505705
9507166750
10219057093
11102719922
1261441199
13364ca4a8
1421143433
1514370c13
hexd0e8bc5

219057093 has 24 divisors (see below), whose sum is σ = 326396928. Its totient is φ = 141486912.

The previous prime is 219057089. The next prime is 219057101. The reversal of 219057093 is 390750912.

219057093 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 219057093 - 22 = 219057089 is a prime.

It is a super-2 number, since 2×2190570932 = 95972019987221298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219057193) 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, 46921 + ... + 51377.

It is an arithmetic number, because the mean of its divisors is an integer number (13599872).

Almost surely, 2219057093 is an apocalyptic number.

It is an amenable number.

219057093 is a deficient number, since it is larger than the sum of its proper divisors (107339835).

219057093 is a wasteful number, since it uses less digits than its factorization.

219057093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4633 (or 4630 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 219057093 is about 14800.5774549509. The cubic root of 219057093 is about 602.8173914685.

The spelling of 219057093 in words is "two hundred nineteen million, fifty-seven thousand, ninety-three".

Divisors: 1 3 9 43 127 129 381 387 1143 4457 5461 13371 16383 40113 49149 191651 566039 574953 1698117 1724859 5094351 24339677 73019031 219057093