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28341200 = 245270853
BaseRepresentation
bin110110000011…
…1001111010000
31222022212211002
41230013033100
524223404300
62451241132
7462616256
oct154071720
958285732
1028341200
1114aa8188
1295a91a8
135b43c54
143a9a5d6
15274c5d5
hex1b073d0

28341200 has 30 divisors (see below), whose sum is σ = 68090694. Its totient is φ = 11336320.

The previous prime is 28341113. The next prime is 28341233. The reversal of 28341200 is 214382.

It can be written as a sum of positive squares in 3 ways, for example, as 5721664 + 22619536 = 2392^2 + 4756^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35027 + ... + 35826.

Almost surely, 228341200 is an apocalyptic number.

28341200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28341200 is an abundant number, since it is smaller than the sum of its proper divisors (39749494).

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

28341200 is a wasteful number, since it uses less digits than its factorization.

28341200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70871 (or 70860 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 28341200 is about 5323.6453676029. The cubic root of 28341200 is about 304.8873542630.

Adding to 28341200 its reverse (214382), we get a palindrome (28555582).

The spelling of 28341200 in words is "twenty-eight million, three hundred forty-one thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 70853 141706 283412 354265 566824 708530 1133648 1417060 1771325 2834120 3542650 5668240 7085300 14170600 28341200