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51088000 = 275331103
BaseRepresentation
bin1100001011100…
…0101010000000
310120010112120011
43002320222000
5101034304000
65022554304
71160145415
oct302705200
9116115504
1051088000
1126924197
1215138994
13a7796b2
146adc10c
1547422ba
hex30b8a80

51088000 has 128 divisors (see below), whose sum is σ = 132387840. Its totient is φ = 19584000.

The previous prime is 51087997. The next prime is 51088001. The reversal of 51088000 is 88015.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51088001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 495949 + ... + 496051.

It is an arithmetic number, because the mean of its divisors is an integer number (1034280).

Almost surely, 251088000 is an apocalyptic number.

51088000 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 51088000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66193920).

51088000 is an abundant number, since it is smaller than the sum of its proper divisors (81299840).

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

51088000 is a wasteful number, since it uses less digits than its factorization.

51088000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 51088000 is about 7147.5870054166. The cubic root of 51088000 is about 371.0561496714.

The spelling of 51088000 in words is "fifty-one million, eighty-eight thousand".

Divisors: 1 2 4 5 8 10 16 20 25 31 32 40 50 62 64 80 100 103 124 125 128 155 160 200 206 248 250 310 320 400 412 496 500 515 620 640 775 800 824 992 1000 1030 1240 1550 1600 1648 1984 2000 2060 2480 2575 3100 3193 3200 3296 3875 3968 4000 4120 4960 5150 6200 6386 6592 7750 8000 8240 9920 10300 12400 12772 12875 13184 15500 15965 16000 16480 19840 20600 24800 25544 25750 31000 31930 32960 41200 49600 51088 51500 62000 63860 65920 79825 82400 99200 102176 103000 124000 127720 159650 164800 204352 206000 248000 255440 319300 329600 399125 408704 412000 496000 510880 638600 798250 824000 1021760 1277200 1596500 1648000 2043520 2554400 3193000 5108800 6386000 10217600 12772000 25544000 51088000