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28746200 = 2352720533
BaseRepresentation
bin110110110101…
…0000111011000
32000002110101002
41231222013120
524324334300
62504044132
7466224110
oct155520730
960073332
1028746200
111525449a
129763648
135c563b2
143b64040
1527cc5d5
hex1b6a1d8

28746200 has 48 divisors (see below), whose sum is σ = 76386480. Its totient is φ = 9855360.

The previous prime is 28746181. The next prime is 28746209. The reversal of 28746200 is 264782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28746209) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 8867 + ... + 11666.

It is an arithmetic number, because the mean of its divisors is an integer number (1591385).

Almost surely, 228746200 is an apocalyptic number.

28746200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28746200 is an abundant number, since it is smaller than the sum of its proper divisors (47640280).

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

28746200 is a wasteful number, since it uses less digits than its factorization.

28746200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20556 (or 20547 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 28746200 is about 5361.5482838449. The cubic root of 28746200 is about 306.3327861710.

The spelling of 28746200 in words is "twenty-eight million, seven hundred forty-six thousand, two hundred".

Divisors: 1 2 4 5 7 8 10 14 20 25 28 35 40 50 56 70 100 140 175 200 280 350 700 1400 20533 41066 82132 102665 143731 164264 205330 287462 410660 513325 574924 718655 821320 1026650 1149848 1437310 2053300 2874620 3593275 4106600 5749240 7186550 14373100 28746200