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53205054 = 23719611093
BaseRepresentation
bin1100101011110…
…1100000111110
310201010002121120
43022331200332
5102110030204
65140211410
71214143530
oct312754076
9121102546
1053205054
112803a821
1215999b66
13b03b1a6
1470cd850
154a0e6d9
hex32bd83e

53205054 has 64 divisors (see below), whose sum is σ = 130229760. Its totient is φ = 14152320.

The previous prime is 53205029. The next prime is 53205059. The reversal of 53205054 is 45050235.

It is a super-2 number, since 2×532050542 = 5661555542285832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53205059) 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, 48132 + ... + 49224.

It is an arithmetic number, because the mean of its divisors is an integer number (2034840).

Almost surely, 253205054 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53205054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65114880).

53205054 is an abundant number, since it is smaller than the sum of its proper divisors (77024706).

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

53205054 is a wasteful number, since it uses less digits than its factorization.

53205054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185.

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 53205054 is about 7294.1794603643. The cubic root of 53205054 is about 376.1123805847.

Adding to 53205054 its reverse (45050235), we get a palindrome (98255289).

The spelling of 53205054 in words is "fifty-three million, two hundred five thousand, fifty-four".

Divisors: 1 2 3 6 7 14 19 21 38 42 57 61 114 122 133 183 266 366 399 427 798 854 1093 1159 1281 2186 2318 2562 3279 3477 6558 6954 7651 8113 15302 16226 20767 22953 24339 41534 45906 48678 62301 66673 124602 133346 145369 200019 290738 400038 436107 466711 872214 933422 1266787 1400133 2533574 2800266 3800361 7600722 8867509 17735018 26602527 53205054