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28412850 = 2352307617
BaseRepresentation
bin110110001100…
…0101110110010
31222110112002210
41230120232302
524233202400
62452552550
7463335204
oct154305662
958415083
1028412850
1115046aa4
129622756
135b6a74b
143ab8774
152763950
hex1b18bb2

28412850 has 48 divisors (see below), whose sum is σ = 70807968. Its totient is φ = 7539840.

The previous prime is 28412827. The next prime is 28412861. The reversal of 28412850 is 5821482.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 23 ways as a sum of consecutive naturals, for example, 45742 + ... + 46358.

It is an arithmetic number, because the mean of its divisors is an integer number (1475166).

Almost surely, 228412850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28412850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35403984).

28412850 is an abundant number, since it is smaller than the sum of its proper divisors (42395118).

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

28412850 is a wasteful number, since it uses less digits than its factorization.

28412850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939 (or 934 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 28412850 is about 5330.3705312108. The cubic root of 28412850 is about 305.1440688182.

The spelling of 28412850 in words is "twenty-eight million, four hundred twelve thousand, eight hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 150 307 614 617 921 1234 1535 1842 1851 3070 3085 3702 4605 6170 7675 9210 9255 15350 15425 18510 23025 30850 46050 46275 92550 189419 378838 568257 947095 1136514 1894190 2841285 4735475 5682570 9470950 14206425 28412850