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28946200 = 2352144731
BaseRepresentation
bin110111001101…
…0111100011000
32000110121201111
41232122330120
524402234300
62512230104
7501016153
oct156327430
960417644
1028946200
1115380788
12983b334
135cc643a
143bb6c9a
15281b9ba
hex1b9af18

28946200 has 24 divisors (see below), whose sum is σ = 67300380. Its totient is φ = 11578400.

The previous prime is 28946191. The next prime is 28946201. The reversal of 28946200 is 264982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28946201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72166 + ... + 72565.

Almost surely, 228946200 is an apocalyptic number.

28946200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28946200 is an abundant number, since it is smaller than the sum of its proper divisors (38354180).

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

28946200 is a wasteful number, since it uses less digits than its factorization.

28946200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144747 (or 144738 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 28946200 is about 5380.1672836446. The cubic root of 28946200 is about 307.0415757124.

The spelling of 28946200 in words is "twenty-eight million, nine hundred forty-six thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 144731 289462 578924 723655 1157848 1447310 2894620 3618275 5789240 7236550 14473100 28946200