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228249339 = 31033791949
BaseRepresentation
bin11011001101011…
…00111011111011
3120220111021020020
431212230323323
5431412434324
634352101523
75441041653
oct1546547373
9526437206
10228249339
1110792811a
12645348a3
13383984a6
1422457363
1515089679
hexd9acefb

228249339 has 16 divisors (see below), whose sum is σ = 308256000. Its totient is φ = 150214176.

The previous prime is 228249331. The next prime is 228249377. The reversal of 228249339 is 933942822.

It is not a de Polignac number, because 228249339 - 23 = 228249331 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228249339.

It is not an unprimeable number, because it can be changed into a prime (228249331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116137 + ... + 118085.

It is an arithmetic number, because the mean of its divisors is an integer number (19266000).

Almost surely, 2228249339 is an apocalyptic number.

228249339 is a deficient number, since it is larger than the sum of its proper divisors (80006661).

228249339 is a wasteful number, since it uses less digits than its factorization.

228249339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2434.

The product of its digits is 186624, while the sum is 42.

The square root of 228249339 is about 15107.9230538152. The cubic root of 228249339 is about 611.1340892872.

The spelling of 228249339 in words is "two hundred twenty-eight million, two hundred forty-nine thousand, three hundred thirty-nine".

Divisors: 1 3 103 309 379 1137 1949 5847 39037 117111 200747 602241 738671 2216013 76083113 228249339