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28925334 = 23219831019
BaseRepresentation
bin110111001010…
…1110110010110
32000102120002200
41232111312112
524401102314
62511545330
7500601264
oct156256626
960376080
1028925334
1115367039
12982b246
135cb9aa9
143bad434
152815709
hex1b95d96

28925334 has 48 divisors (see below), whose sum is σ = 66830400. Its totient is φ = 9015408.

The previous prime is 28925317. The next prime is 28925341. The reversal of 28925334 is 43352982.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27877 + ... + 28895.

It is an arithmetic number, because the mean of its divisors is an integer number (1392300).

Almost surely, 228925334 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28925334, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33415200).

28925334 is an abundant number, since it is smaller than the sum of its proper divisors (37905066).

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

28925334 is a wasteful number, since it uses less digits than its factorization.

28925334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129 (or 1126 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 28925334 is about 5378.2277750203. The cubic root of 28925334 is about 306.9677805386.

The spelling of 28925334 in words is "twenty-eight million, nine hundred twenty-five thousand, three hundred thirty-four".

Divisors: 1 2 3 6 9 18 19 38 57 83 114 166 171 249 342 498 747 1019 1494 1577 2038 3057 3154 4731 6114 9171 9462 14193 18342 19361 28386 38722 58083 84577 116166 169154 174249 253731 348498 507462 761193 1522386 1606963 3213926 4820889 9641778 14462667 28925334