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54038820 = 223511411997
BaseRepresentation
bin1100111000100…
…1000100100100
310202200110022210
43032021010210
5102313220240
65210123420
71224215403
oct316110444
9122613283
1054038820
112855a190
1216120570
13b270844
14726963a
154b26780
hex3389124

54038820 has 96 divisors (see below), whose sum is σ = 169174656. Its totient is φ = 12774400.

The previous prime is 54038819. The next prime is 54038827. The reversal of 54038820 is 2883045.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (54038827) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26062 + ... + 28058.

It is an arithmetic number, because the mean of its divisors is an integer number (1762236).

Almost surely, 254038820 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 54038820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84587328).

54038820 is an abundant number, since it is smaller than the sum of its proper divisors (115135836).

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

54038820 is a wasteful number, since it uses less digits than its factorization.

54038820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061 (or 2059 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 54038820 is about 7351.1101202471. The cubic root of 54038820 is about 378.0668675972.

The spelling of 54038820 in words is "fifty-four million, thirty-eight thousand, eight hundred twenty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 41 44 55 60 66 82 110 123 132 164 165 205 220 246 330 410 451 492 615 660 820 902 1230 1353 1804 1997 2255 2460 2706 3994 4510 5412 5991 6765 7988 9020 9985 11982 13530 19970 21967 23964 27060 29955 39940 43934 59910 65901 81877 87868 109835 119820 131802 163754 219670 245631 263604 327508 329505 409385 439340 491262 659010 818770 900647 982524 1228155 1318020 1637540 1801294 2456310 2701941 3602588 4503235 4912620 5403882 9006470 10807764 13509705 18012940 27019410 54038820