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52428142 = 21319910133
BaseRepresentation
bin1100011111111…
…1110101101110
310122122121220001
43013333311232
5101410200032
65111414514
71204426504
oct307776556
9118577801
1052428142
112765a048
121568443a
13ab28690
146d6a674
1549093e7
hex31ffd6e

52428142 has 16 divisors (see below), whose sum is σ = 85125600. Its totient is φ = 24073632.

The previous prime is 52428139. The next prime is 52428151. The reversal of 52428142 is 24182425.

It is a self number, because there is not a number n which added to its sum of digits gives 52428142.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108 + ... + 10240.

It is an arithmetic number, because the mean of its divisors is an integer number (5320350).

Almost surely, 252428142 is an apocalyptic number.

52428142 is a deficient number, since it is larger than the sum of its proper divisors (32697458).

52428142 is a wasteful number, since it uses less digits than its factorization.

52428142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10347.

The product of its digits is 5120, while the sum is 28.

The square root of 52428142 is about 7240.7280020727. The cubic root of 52428142 is about 374.2727047265.

The spelling of 52428142 in words is "fifty-two million, four hundred twenty-eight thousand, one hundred forty-two".

Divisors: 1 2 13 26 199 398 2587 5174 10133 20266 131729 263458 2016467 4032934 26214071 52428142