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305053038 = 232412811471
BaseRepresentation
bin10010001011101…
…011110101101110
3210021000022002200
4102023223311232
51111043144123
650134202330
710362623313
oct2213536556
9707008080
10305053038
11147215954
12861b33a6
134b279a74
142c72ad0a
151bbab143
hex122ebd6e

305053038 has 48 divisors (see below), whose sum is σ = 679940352. Its totient is φ = 98784000.

The previous prime is 305053031. The next prime is 305053061. The reversal of 305053038 is 830350503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305053031) 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 23 ways as a sum of consecutive naturals, for example, 206643 + ... + 208113.

It is an arithmetic number, because the mean of its divisors is an integer number (14165424).

Almost surely, 2305053038 is an apocalyptic number.

305053038 is an abundant number, since it is smaller than the sum of its proper divisors (374887314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

305053038 is a wasteful number, since it uses less digits than its factorization.

305053038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1801 (or 1798 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 305053038 is about 17465.7676040877. The cubic root of 305053038 is about 673.1705655537.

The spelling of 305053038 in words is "three hundred five million, fifty-three thousand, thirty-eight".

Divisors: 1 2 3 6 9 18 41 82 123 246 281 369 562 738 843 1471 1686 2529 2942 4413 5058 8826 11521 13239 23042 26478 34563 60311 69126 103689 120622 180933 207378 361866 413351 542799 826702 1085598 1240053 2480106 3720159 7440318 16947391 33894782 50842173 101684346 152526519 305053038