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51241600 = 275267239
BaseRepresentation
bin1100001101111…
…0001010000000
310120102100021001
43003132022000
5101104212400
65030141344
71161355264
oct303361200
9116370231
1051241600
1126a19633
12151b1854
13a801597
146b3c0a4
154772a6a
hex30de280

51241600 has 96 divisors (see below), whose sum is σ = 129009600. Its totient is φ = 20106240.

The previous prime is 51241583. The next prime is 51241601. The reversal of 51241600 is 614215.

It is not an unprimeable number, because it can be changed into a prime (51241601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 214281 + ... + 214519.

It is an arithmetic number, because the mean of its divisors is an integer number (1343850).

Almost surely, 251241600 is an apocalyptic number.

51241600 is a gapful number since it is divisible by the number (50) 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 51241600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64504800).

51241600 is an abundant number, since it is smaller than the sum of its proper divisors (77768000).

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

51241600 is a wasteful number, since it uses less digits than its factorization.

51241600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 51241600 is about 7158.3238261481. The cubic root of 51241600 is about 371.4276472223.

Adding to 51241600 its reverse (614215), we get a palindrome (51855815).

It can be divided in two parts, 5124 and 1600, that added together give a square (6724 = 822).

The spelling of 51241600 in words is "fifty-one million, two hundred forty-one thousand, six hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 67 80 100 128 134 160 200 239 268 320 335 400 478 536 640 670 800 956 1072 1195 1340 1600 1675 1912 2144 2390 2680 3200 3350 3824 4288 4780 5360 5975 6700 7648 8576 9560 10720 11950 13400 15296 16013 19120 21440 23900 26800 30592 32026 38240 42880 47800 53600 64052 76480 80065 95600 107200 128104 152960 160130 191200 214400 256208 320260 382400 400325 512416 640520 764800 800650 1024832 1281040 1601300 2049664 2562080 3202600 5124160 6405200 10248320 12810400 25620800 51241600