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1428801750 = 232532392657
BaseRepresentation
bin101010100101001…
…1100100011010110
310200120112122112100
41111022130203112
510411233124000
6353440102530
750256420525
oct12512344326
93616478470
101428801750
116735809a2
1233a604a46
1319a02422c
14d7a8c4bc
1585683a00
hex5529c8d6

1428801750 has 96 divisors (see below), whose sum is σ = 3881105280. Its totient is φ = 379276800.

The previous prime is 1428801727. The next prime is 1428801763. The reversal of 1428801750 is 571088241.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 536422 + ... + 539078.

It is an arithmetic number, because the mean of its divisors is an integer number (40428180).

Almost surely, 21428801750 is an apocalyptic number.

1428801750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1428801750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1940552640).

1428801750 is an abundant number, since it is smaller than the sum of its proper divisors (2452303530).

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

1428801750 is a wasteful number, since it uses less digits than its factorization.

1428801750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2919 (or 2906 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The square root of 1428801750 is about 37799.4940442329. The cubic root of 1428801750 is about 1126.3084036293.

Adding to 1428801750 its reverse (571088241), we get a palindrome (1999889991).

The spelling of 1428801750 in words is "one billion, four hundred twenty-eight million, eight hundred one thousand, seven hundred fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 30 45 50 75 90 125 150 225 239 250 375 450 478 717 750 1125 1195 1434 2151 2250 2390 2657 3585 4302 5314 5975 7170 7971 10755 11950 13285 15942 17925 21510 23913 26570 29875 35850 39855 47826 53775 59750 66425 79710 89625 107550 119565 132850 179250 199275 239130 268875 332125 398550 537750 597825 635023 664250 996375 1195650 1270046 1905069 1992750 2989125 3175115 3810138 5715207 5978250 6350230 9525345 11430414 15875575 19050690 28576035 31751150 47626725 57152070 79377875 95253450 142880175 158755750 238133625 285760350 476267250 714400875 1428801750