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2073130091 = 3721977687
BaseRepresentation
bin111101110010001…
…0111010001101011
312100110221220211222
41323210113101223
513221210130331
6541414212255
7102242213024
oct17344272153
95313856758
102073130091
1197425635a
1249a35408b
132706707c6
14159493c4b
15c200ab7b
hex7b91746b

2073130091 has 12 divisors (see below), whose sum is σ = 2141769168. Its totient is φ = 2006599392.

The previous prime is 2073130067. The next prime is 2073130117. The reversal of 2073130091 is 1900313702.

It is not a de Polignac number, because 2073130091 - 210 = 2073129067 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 2073130091.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2073130021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 265850 + ... + 273536.

It is an arithmetic number, because the mean of its divisors is an integer number (178480764).

Almost surely, 22073130091 is an apocalyptic number.

2073130091 is a deficient number, since it is larger than the sum of its proper divisors (68639077).

2073130091 is an equidigital number, since it uses as much as digits as its factorization.

2073130091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7958 (or 7921 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 2073130091 is about 45531.6383518098. The cubic root of 2073130091 is about 1275.0939499654.

Adding to 2073130091 its reverse (1900313702), we get a palindrome (3973443793).

The spelling of 2073130091 in words is "two billion, seventy-three million, one hundred thirty thousand, ninety-one".

Divisors: 1 37 197 1369 7289 7687 269693 284419 1514339 10523503 56030543 2073130091