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2020243501 = 172943157607
BaseRepresentation
bin111100001101010…
…0111100000101101
312012210110000002101
41320122213200231
513114140243001
6532244455101
7101030533513
oct17032474055
95183400071
102020243501
11947413931
124846aa491
13262714573
141524484b3
15bc560a01
hex786a782d

2020243501 has 32 divisors (see below), whose sum is σ = 2282480640. Its totient is φ = 1778789376.

The previous prime is 2020243487. The next prime is 2020243507. The reversal of 2020243501 is 1053420202.

It is a cyclic number.

It is not a de Polignac number, because 2020243501 - 29 = 2020242989 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 (2020243507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3327940 + ... + 3328546.

It is an arithmetic number, because the mean of its divisors is an integer number (71327520).

Almost surely, 22020243501 is an apocalyptic number.

It is an amenable number.

2020243501 is a deficient number, since it is larger than the sum of its proper divisors (262237139).

2020243501 is a wasteful number, since it uses less digits than its factorization.

2020243501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 2020243501 is about 44947.1189399276. The cubic root of 2020243501 is about 1264.1576567640.

Adding to 2020243501 its reverse (1053420202), we get a palindrome (3073663703).

The spelling of 2020243501 in words is "two billion, twenty million, two hundred forty-three thousand, five hundred one".

Divisors: 1 17 29 43 157 493 607 731 1247 2669 4553 6751 10319 17603 21199 26101 77401 95299 114767 195779 299251 443717 756929 1620083 2763671 3328243 4097857 12867793 46982407 69663569 118837853 2020243501