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53888380 = 225713291021
BaseRepresentation
bin1100110110010…
…0010101111100
310202101210221221
43031210111330
5102243412010
65203003124
71223020660
oct315442574
9122353857
1053888380
1128467157
12160694a4
13b21a220
14722a8a0
154ae6dda
hex336457c

53888380 has 96 divisors (see below), whose sum is σ = 144224640. Its totient is φ = 16450560.

The previous prime is 53888377. The next prime is 53888431. The reversal of 53888380 is 8388835.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52270 + ... + 53290.

It is an arithmetic number, because the mean of its divisors is an integer number (1502340).

Almost surely, 253888380 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 53888380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72112320).

53888380 is an abundant number, since it is smaller than the sum of its proper divisors (90336260).

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

53888380 is a wasteful number, since it uses less digits than its factorization.

53888380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079 (or 1077 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 43.

The square root of 53888380 is about 7340.8705205854. The cubic root of 53888380 is about 377.7157049750.

The spelling of 53888380 in words is "fifty-three million, eight hundred eighty-eight thousand, three hundred eighty".

Divisors: 1 2 4 5 7 10 13 14 20 26 28 29 35 52 58 65 70 91 116 130 140 145 182 203 260 290 364 377 406 455 580 754 812 910 1015 1021 1508 1820 1885 2030 2042 2639 3770 4060 4084 5105 5278 7147 7540 10210 10556 13195 13273 14294 20420 26390 26546 28588 29609 35735 52780 53092 59218 66365 71470 92911 118436 132730 142940 148045 185822 207263 265460 296090 371644 384917 414526 464555 592180 769834 829052 929110 1036315 1539668 1858220 1924585 2072630 2694419 3849170 4145260 5388838 7698340 10777676 13472095 26944190 53888380