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3138800 = 245271959
BaseRepresentation
bin1011111110010011110000
312220110121212
423332103300
51300420200
6151135252
735452010
oct13762360
95813555
103138800
111854255
121074528
1385b8a2
145b9c40
15420035
hex2fe4f0

3138800 has 120 divisors (see below), whose sum is σ = 9225600. Its totient is φ = 1002240.

The previous prime is 3138799. The next prime is 3138803. The reversal of 3138800 is 88313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3138803) 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 23 ways as a sum of consecutive naturals, for example, 53171 + ... + 53229.

It is an arithmetic number, because the mean of its divisors is an integer number (76880).

Almost surely, 23138800 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 3138800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4612800).

3138800 is an abundant number, since it is smaller than the sum of its proper divisors (6086800).

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

3138800 is a wasteful number, since it uses less digits than its factorization.

3138800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103 (or 92 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 3138800 is about 1771.6658827217. The cubic root of 3138800 is about 146.4157786053.

The spelling of 3138800 in words is "three million, one hundred thirty-eight thousand, eight hundred".

Divisors: 1 2 4 5 7 8 10 14 16 19 20 25 28 35 38 40 50 56 59 70 76 80 95 100 112 118 133 140 152 175 190 200 236 266 280 295 304 350 380 400 413 472 475 532 560 590 665 700 760 826 944 950 1064 1121 1180 1330 1400 1475 1520 1652 1900 2065 2128 2242 2360 2660 2800 2950 3304 3325 3800 4130 4484 4720 5320 5605 5900 6608 6650 7600 7847 8260 8968 10325 10640 11210 11800 13300 15694 16520 17936 20650 22420 23600 26600 28025 31388 33040 39235 41300 44840 53200 56050 62776 78470 82600 89680 112100 125552 156940 165200 196175 224200 313880 392350 448400 627760 784700 1569400 3138800