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28914204 = 22311317691
BaseRepresentation
bin110111001001…
…1001000011100
32000101222211110
41232103020130
524400223304
62511422020
7500523654
oct156231034
960358743
1028914204
1115359740
129824910
135cb49c7
143ba9364
152812289
hex1b9321c

28914204 has 48 divisors (see below), whose sum is σ = 73938816. Its totient is φ = 8721600.

The previous prime is 28914199. The next prime is 28914233. The reversal of 28914204 is 40241982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41499 + ... + 42189.

It is an arithmetic number, because the mean of its divisors is an integer number (1540392).

Almost surely, 228914204 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 28914204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36969408).

28914204 is an abundant number, since it is smaller than the sum of its proper divisors (45024612).

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

28914204 is a wasteful number, since it uses less digits than its factorization.

28914204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026 (or 1024 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 28914204 is about 5377.1929479981. The cubic root of 28914204 is about 306.9284034110.

The spelling of 28914204 in words is "twenty-eight million, nine hundred fourteen thousand, two hundred four".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 317 634 691 951 1268 1382 1902 2073 2764 3487 3804 4146 6974 7601 8292 10461 13948 15202 20922 22803 30404 41844 45606 91212 219047 438094 657141 876188 1314282 2409517 2628564 4819034 7228551 9638068 14457102 28914204