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2020102011 = 3631711259
BaseRepresentation
bin111100001101000…
…0100111101111011
312012210011211000000
41320122010331323
513114121231021
6532241444043
7101026404144
oct17032047573
95183154000
102020102011
119473275a4
12484640623
13262695045
1415240cacb
15bc533b26
hex78684f7b

2020102011 has 56 divisors (see below), whose sum is σ = 3173022720. Its totient is φ = 1283914800.

The previous prime is 2020102001. The next prime is 2020102033. The reversal of 2020102011 is 1102010202.

It is not a de Polignac number, because 2020102011 - 27 = 2020101883 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2020101984 and 2020102002.

It is not an unprimeable number, because it can be changed into a prime (2020102001) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 1603900 + ... + 1605158.

It is an arithmetic number, because the mean of its divisors is an integer number (56661120).

Almost surely, 22020102011 is an apocalyptic number.

2020102011 is a deficient number, since it is larger than the sum of its proper divisors (1152920709).

2020102011 is an equidigital number, since it uses as much as digits as its factorization.

2020102011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379 (or 1364 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 2020102011 is about 44945.5449516412. The cubic root of 2020102011 is about 1264.1281438459.

Adding to 2020102011 its reverse (1102010202), we get a palindrome (3122112213).

It can be divided in two parts, 202010201 and 1, that added together give a palindrome (202010202).

The spelling of 2020102011 in words is "two billion, twenty million, one hundred two thousand, eleven".

Divisors: 1 3 9 27 31 71 81 93 213 243 279 639 729 837 1259 1917 2201 2511 3777 5751 6603 7533 11331 17253 19809 22599 33993 39029 51759 59427 89389 101979 117087 178281 268167 305937 351261 534843 804501 917811 1053783 1604529 2413503 2771059 3161349 7240509 8313177 9484047 21721527 24939531 28452141 65164581 74818593 224455779 673367337 2020102011