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53458438 = 21117197523
BaseRepresentation
bin1100101111101…
…1011000000110
310201120222012011
43023323120012
5102141132223
65145444434
71216250335
oct313733006
9121528164
1053458438
11281a3130
1215aa071a
13b0c9617
147157d1c
154a5e80d
hex32fb606

53458438 has 32 divisors (see below), whose sum is σ = 97511040. Its totient is φ = 21663360.

The previous prime is 53458403. The next prime is 53458439. The reversal of 53458438 is 83485435.

It is a self number, because there is not a number n which added to its sum of digits gives 53458438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53458439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3345 + ... + 10867.

It is an arithmetic number, because the mean of its divisors is an integer number (3047220).

Almost surely, 253458438 is an apocalyptic number.

53458438 is a deficient number, since it is larger than the sum of its proper divisors (44052602).

53458438 is a wasteful number, since it uses less digits than its factorization.

53458438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7572.

The product of its digits is 230400, while the sum is 40.

The square root of 53458438 is about 7311.5277473316. The cubic root of 53458438 is about 376.7085017186.

The spelling of 53458438 in words is "fifty-three million, four hundred fifty-eight thousand, four hundred thirty-eight".

Divisors: 1 2 11 17 19 22 34 38 187 209 323 374 418 646 3553 7106 7523 15046 82753 127891 142937 165506 255782 285874 1406801 1572307 2429929 2813602 3144614 4859858 26729219 53458438