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53542450 = 2521382373
BaseRepresentation
bin1100110000111…
…1111000110010
310201202020102201
43030033320302
5102201324300
65151333414
71220050303
oct314177062
9121666381
1053542450
1128250265
1215b2126a
13b128930
14717a7aa
154a7966a
hex330fe32

53542450 has 24 divisors (see below), whose sum is σ = 107250948. Its totient is φ = 19769280.

The previous prime is 53542429. The next prime is 53542481. The reversal of 53542450 is 5424535.

It can be written as a sum of positive squares in 6 ways, for example, as 29365561 + 24176889 = 5419^2 + 4917^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40537 + ... + 41836.

Almost surely, 253542450 is an apocalyptic number.

53542450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53542450 is an abundant number, since it is smaller than the sum of its proper divisors (53708498).

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

53542450 is a wasteful number, since it uses less digits than its factorization.

53542450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82398 (or 82393 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 53542450 is about 7317.2706660339. The cubic root of 53542450 is about 376.9057357543.

Adding to 53542450 its reverse (5424535), we get a palindrome (58966985).

The spelling of 53542450 in words is "fifty-three million, five hundred forty-two thousand, four hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 130 325 650 82373 164746 411865 823730 1070849 2059325 2141698 4118650 5354245 10708490 26771225 53542450