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52020001 = 1183227251
BaseRepresentation
bin1100011001110…
…0001100100001
310121212220000201
43012130030201
5101304120001
65054545201
71201106545
oct306341441
9117786021
1052020001
1127400440
1215508201
13aa14987
146ca1a25
154878501
hex319c321

52020001 has 16 divisors (see below), whose sum is σ = 57915648. Its totient is φ = 46330000.

The previous prime is 52019987. The next prime is 52020013. The reversal of 52020001 is 10002025.

It is a cyclic number.

It is not a de Polignac number, because 52020001 - 217 = 51888929 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52020001.

It is not an unprimeable number, because it can be changed into a prime (52020061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207126 + ... + 207376.

It is an arithmetic number, because the mean of its divisors is an integer number (3619728).

Almost surely, 252020001 is an apocalyptic number.

It is an amenable number.

52020001 is a deficient number, since it is larger than the sum of its proper divisors (5895647).

52020001 is a wasteful number, since it uses less digits than its factorization.

52020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572.

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 52020001 is about 7212.4892374270. The cubic root of 52020001 is about 373.2989646472.

Adding to 52020001 its reverse (10002025), we get a palindrome (62022026).

The spelling of 52020001 in words is "fifty-two million, twenty thousand, one".

Divisors: 1 11 83 227 251 913 2497 2761 18841 20833 56977 207251 229163 626747 4729091 52020001