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11487000 = 233537547
BaseRepresentation
bin101011110100…
…011100011000
3210121121012110
4223310130120
510420041000
61050112320
7166431540
oct53643430
923547173
1011487000
116536398
123a1b6a0
1324c2655
141750320
15101d850
hexaf4718

11487000 has 128 divisors (see below), whose sum is σ = 41034240. Its totient is φ = 2620800.

The previous prime is 11486989. The next prime is 11487017. The reversal of 11487000 is 78411.

11487000 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×114870004 (a number of 29 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 20727 + ... + 21273.

It is an arithmetic number, because the mean of its divisors is an integer number (320580).

Almost surely, 211487000 is an apocalyptic number.

11487000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11487000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20517120).

11487000 is an abundant number, since it is smaller than the sum of its proper divisors (29547240).

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

11487000 is a wasteful number, since it uses less digits than its factorization.

11487000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578 (or 564 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 11487000 is about 3389.2477041373. The cubic root of 11487000 is about 225.6327865935.

The spelling of 11487000 in words is "eleven million, four hundred eighty-seven thousand".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 25 28 30 35 40 42 50 56 60 70 75 84 100 105 120 125 140 150 168 175 200 210 250 280 300 350 375 420 500 525 547 600 700 750 840 875 1000 1050 1094 1400 1500 1641 1750 2100 2188 2625 2735 3000 3282 3500 3829 4200 4376 5250 5470 6564 7000 7658 8205 10500 10940 11487 13128 13675 15316 16410 19145 21000 21880 22974 27350 30632 32820 38290 41025 45948 54700 57435 65640 68375 76580 82050 91896 95725 109400 114870 136750 153160 164100 191450 205125 229740 273500 287175 328200 382900 410250 459480 478625 547000 574350 765800 820500 957250 1148700 1435875 1641000 1914500 2297400 2871750 3829000 5743500 11487000