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28529124 = 22313434253
BaseRepresentation
bin110110011010…
…1000111100100
31222200102121020
41230311013210
524300412444
62455251140
7464331201
oct154650744
958612536
1028529124
1115116398
129679ab0
135bab650
143b08ca8
152788119
hex1b351e4

28529124 has 48 divisors (see below), whose sum is σ = 73372992. Its totient is φ = 8572032.

The previous prime is 28529113. The next prime is 28529159. The reversal of 28529124 is 42192582.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4582 + ... + 8834.

It is an arithmetic number, because the mean of its divisors is an integer number (1528604).

Almost surely, 228529124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28529124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36686496).

28529124 is an abundant number, since it is smaller than the sum of its proper divisors (44843868).

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

28529124 is a wasteful number, since it uses less digits than its factorization.

28529124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4316 (or 4314 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 28529124 is about 5341.2661420304. The cubic root of 28529124 is about 305.5597496627.

The spelling of 28529124 in words is "twenty-eight million, five hundred twenty-nine thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 12 13 26 39 43 52 78 86 129 156 172 258 516 559 1118 1677 2236 3354 4253 6708 8506 12759 17012 25518 51036 55289 110578 165867 182879 221156 331734 365758 548637 663468 731516 1097274 2194548 2377427 4754854 7132281 9509708 14264562 28529124