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53842020 = 22354143509
BaseRepresentation
bin1100110101100…
…1000001100100
310202022110100220
43031121001210
5102240421040
65202004340
71222435551
oct315310144
9122273326
1053842020
1128435341
12160466b0
13b2020ab
147217a28
154ad82d0
hex3359064

53842020 has 96 divisors (see below), whose sum is σ = 158336640. Its totient is φ = 13655040.

The previous prime is 53842007. The next prime is 53842039. The reversal of 53842020 is 2024835.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105526 + ... + 106034.

It is an arithmetic number, because the mean of its divisors is an integer number (1649340).

Almost surely, 253842020 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 53842020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79168320).

53842020 is an abundant number, since it is smaller than the sum of its proper divisors (104494620).

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

53842020 is a wasteful number, since it uses less digits than its factorization.

53842020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605 (or 603 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 53842020 is about 7337.7121775115. The cubic root of 53842020 is about 377.6073580302.

Adding to 53842020 its reverse (2024835), we get a palindrome (55866855).

The spelling of 53842020 in words is "fifty-three million, eight hundred forty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 41 43 60 82 86 123 129 164 172 205 215 246 258 410 430 492 509 516 615 645 820 860 1018 1230 1290 1527 1763 2036 2460 2545 2580 3054 3526 5090 5289 6108 7052 7635 8815 10180 10578 15270 17630 20869 21156 21887 26445 30540 35260 41738 43774 52890 62607 65661 83476 87548 104345 105780 109435 125214 131322 208690 218870 250428 262644 313035 328305 417380 437740 626070 656610 897367 1252140 1313220 1794734 2692101 3589468 4486835 5384202 8973670 10768404 13460505 17947340 26921010 53842020