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53882820 = 2235511087
BaseRepresentation
bin1100110110001…
…0111111000100
310202101112100000
43031202333010
5102243222240
65202521300
71222665525
oct315427704
9122345300
1053882820
1128462a62
1216066230
13b217834
14722884c
154ae5430
hex3362fc4

53882820 has 72 divisors (see below), whose sum is σ = 169513344. Its totient is φ = 14367456.

The previous prime is 53882791. The next prime is 53882839. The reversal of 53882820 is 2828835.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 684 + ... + 10403.

It is an arithmetic number, because the mean of its divisors is an integer number (2354352).

Almost surely, 253882820 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 53882820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84756672).

53882820 is an abundant number, since it is smaller than the sum of its proper divisors (115630524).

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

53882820 is a wasteful number, since it uses less digits than its factorization.

53882820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11111 (or 11097 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 53882820 is about 7340.4918091365. The cubic root of 53882820 is about 377.7027141005.

The spelling of 53882820 in words is "fifty-three million, eight hundred eighty-two thousand, eight hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 81 90 108 135 162 180 243 270 324 405 486 540 810 972 1215 1620 2430 4860 11087 22174 33261 44348 55435 66522 99783 110870 133044 166305 199566 221740 299349 332610 399132 498915 598698 665220 898047 997830 1197396 1496745 1796094 1995660 2694141 2993490 3592188 4490235 5388282 5986980 8980470 10776564 13470705 17960940 26941410 53882820