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28334358 = 23213196373
BaseRepresentation
bin110110000010…
…1100100010110
31222022112102200
41230011210112
524223144413
62451145330
7462560313
oct154054426
958275380
1028334358
1114aa3028
1295a5246
135b40ac0
143a97d0a
15274a573
hex1b05916

28334358 has 48 divisors (see below), whose sum is σ = 69604080. Its totient is φ = 8258112.

The previous prime is 28334353. The next prime is 28334381. The reversal of 28334358 is 85343382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28334351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1260 + ... + 7632.

It is an arithmetic number, because the mean of its divisors is an integer number (1450085).

Almost surely, 228334358 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28334358, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34802040).

28334358 is an abundant number, since it is smaller than the sum of its proper divisors (41269722).

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

28334358 is a wasteful number, since it uses less digits than its factorization.

28334358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6413 (or 6410 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 28334358 is about 5323.0027240271. The cubic root of 28334358 is about 304.8628174618.

The spelling of 28334358 in words is "twenty-eight million, three hundred thirty-four thousand, three hundred fifty-eight".

Divisors: 1 2 3 6 9 13 18 19 26 38 39 57 78 114 117 171 234 247 342 494 741 1482 2223 4446 6373 12746 19119 38238 57357 82849 114714 121087 165698 242174 248547 363261 497094 726522 745641 1089783 1491282 1574131 2179566 3148262 4722393 9444786 14167179 28334358