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53555830 = 2545711719
BaseRepresentation
bin1100110001001…
…1001001110110
310201202220210021
43030103021312
5102202241310
65151515354
71220134306
oct314231166
9121686707
1053555830
112825a319
1215b28b5a
13b131a53
147181606
154a7d5da
hex3313276

53555830 has 16 divisors (see below), whose sum is σ = 96619680. Its totient is φ = 21373632.

The previous prime is 53555819. The next prime is 53555861. The reversal of 53555830 is 3855535.

53555830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1290 + ... + 10429.

It is an arithmetic number, because the mean of its divisors is an integer number (6038730).

Almost surely, 253555830 is an apocalyptic number.

53555830 is a deficient number, since it is larger than the sum of its proper divisors (43063850).

53555830 is a wasteful number, since it uses less digits than its factorization.

53555830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12183.

The product of its (nonzero) digits is 45000, while the sum is 34.

The square root of 53555830 is about 7318.1848842455. The cubic root of 53555830 is about 376.9371287812.

It can be divided in two parts, 535 and 55830, that added together give a palindrome (56365).

The spelling of 53555830 in words is "fifty-three million, five hundred fifty-five thousand, eight hundred thirty".

Divisors: 1 2 5 10 457 914 2285 4570 11719 23438 58595 117190 5355583 10711166 26777915 53555830