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53144100 = 2231252
BaseRepresentation
bin1100101010111…
…0101000100100
310201000000000000
43022232220210
5102101102400
65135021300
71213501032
oct312565044
9121000000
1053144100
1127aa8a49
121596a830
13b019519
1470b5552
1549eb600
hex32aea24

53144100 has 117 divisors (see below), whose sum is σ = 172983937. Its totient is φ = 14171760.

The previous prime is 53144059. The next prime is 53144111. The reversal of 53144100 is 144135.

It is a happy number.

The square root of 53144100 is 7290.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 19131876 + 34012224 = 4374^2 + 5832^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 38 ways as a sum of consecutive naturals, for example, 10628818 + ... + 10628822.

Almost surely, 253144100 is an apocalyptic number.

53144100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53144100 is the 7290-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53144100

53144100 is an abundant number, since it is smaller than the sum of its proper divisors (119839837).

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

53144100 is an frugal number, since it uses more digits than its factorization.

53144100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50 (or 10 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The cubic root of 53144100 is about 375.9686955226.

Adding to 53144100 its reverse (144135), we get a palindrome (53288235).

The spelling of 53144100 in words is "fifty-three million, one hundred forty-four thousand, one hundred".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 25 27 30 36 45 50 54 60 75 81 90 100 108 135 150 162 180 225 243 270 300 324 405 450 486 540 675 729 810 900 972 1215 1350 1458 1620 2025 2187 2430 2700 2916 3645 4050 4374 4860 6075 6561 7290 8100 8748 10935 12150 13122 14580 18225 19683 21870 24300 26244 32805 36450 39366 43740 54675 59049 65610 72900 78732 98415 109350 118098 131220 164025 177147 196830 218700 236196 295245 328050 354294 393660 492075 531441 590490 656100 708588 885735 984150 1062882 1180980 1476225 1771470 1968300 2125764 2657205 2952450 3542940 4428675 5314410 5904900 8857350 10628820 13286025 17714700 26572050 53144100