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52545143 = 737202877
BaseRepresentation
bin1100100001110…
…0011001110111
310122212120101102
43020130121313
5101422421033
65114120315
71205424560
oct310343167
9118776342
1052545143
1127729a42
121572009b
13ab69a01
146d9b167
15492dde8
hex321c677

52545143 has 8 divisors (see below), whose sum is σ = 61674912. Its totient is φ = 43821216.

The previous prime is 52545139. The next prime is 52545151. The reversal of 52545143 is 34154525.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52545143 - 22 = 52545139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52545173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101180 + ... + 101697.

It is an arithmetic number, because the mean of its divisors is an integer number (7709364).

Almost surely, 252545143 is an apocalyptic number.

52545143 is a deficient number, since it is larger than the sum of its proper divisors (9129769).

52545143 is a wasteful number, since it uses less digits than its factorization.

52545143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202921.

The product of its digits is 12000, while the sum is 29.

The square root of 52545143 is about 7248.8028666808. The cubic root of 52545143 is about 374.5509124765.

Adding to 52545143 its reverse (34154525), we get a palindrome (86699668).

The spelling of 52545143 in words is "fifty-two million, five hundred forty-five thousand, one hundred forty-three".

Divisors: 1 7 37 259 202877 1420139 7506449 52545143