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53383550 = 25211312101
BaseRepresentation
bin1100101110100…
…1000101111110
310201110011110112
43023221011332
5102131233200
65144110022
71215516113
oct313510576
9121404415
1053383550
1128151940
1215a65312
13b0a14cc
14713890a
154a47535
hex32e917e

53383550 has 72 divisors (see below), whose sum is σ = 113035176. Its totient is φ = 18600000.

The previous prime is 53383543. The next prime is 53383567. The reversal of 53383550 is 5538335.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 528500 + ... + 528600.

It is an arithmetic number, because the mean of its divisors is an integer number (1569933).

Almost surely, 253383550 is an apocalyptic number.

53383550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53383550 is an abundant number, since it is smaller than the sum of its proper divisors (59651626).

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

53383550 is a wasteful number, since it uses less digits than its factorization.

53383550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 32.

The square root of 53383550 is about 7306.4047246235. The cubic root of 53383550 is about 376.5325137248.

It can be divided in two parts, 5338 and 3550, that added together give a palindrome (8888).

The spelling of 53383550 in words is "fifty-three million, three hundred eighty-three thousand, five hundred fifty".

Divisors: 1 2 5 10 11 22 25 31 50 55 62 101 110 155 202 275 310 341 505 550 682 775 961 1010 1111 1550 1705 1922 2222 2525 3131 3410 4805 5050 5555 6262 8525 9610 10571 11110 15655 17050 21142 24025 27775 31310 34441 48050 52855 55550 68882 78275 97061 105710 156550 172205 194122 264275 344410 485305 528550 861025 970610 1067671 1722050 2135342 2426525 4853050 5338355 10676710 26691775 53383550