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28948110 = 23517311831
BaseRepresentation
bin110111001101…
…1011010001110
32000110201100020
41232123122032
524402314420
62512243010
7501024552
oct156333216
960421306
1028948110
1115382164
129840466
135cc7279
143bb7862
15281c340
hex1b9b68e

28948110 has 64 divisors (see below), whose sum is σ = 75976704. Its totient is φ = 7027200.

The previous prime is 28948109. The next prime is 28948133. The reversal of 28948110 is 1184982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14895 + ... + 16725.

It is an arithmetic number, because the mean of its divisors is an integer number (1187136).

Almost surely, 228948110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28948110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37988352).

28948110 is an abundant number, since it is smaller than the sum of its proper divisors (47028594).

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

28948110 is a wasteful number, since it uses less digits than its factorization.

28948110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1889.

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 28948110 is about 5380.3447844910. The cubic root of 28948110 is about 307.0483288902.

The spelling of 28948110 in words is "twenty-eight million, nine hundred forty-eight thousand, one hundred ten".

Divisors: 1 2 3 5 6 10 15 17 30 31 34 51 62 85 93 102 155 170 186 255 310 465 510 527 930 1054 1581 1831 2635 3162 3662 5270 5493 7905 9155 10986 15810 18310 27465 31127 54930 56761 62254 93381 113522 155635 170283 186762 283805 311270 340566 466905 567610 851415 933810 964937 1702830 1929874 2894811 4824685 5789622 9649370 14474055 28948110