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2101030193 = 2972449317
BaseRepresentation
bin111110100111011…
…0010110100110001
312102102110101121002
41331032302310301
513300330431233
6544252211345
7103031314313
oct17516626461
95372411532
102101030193
11988a82099
124a7769b55
1327638ba42
1415d0777b3
15c46bc6e8
hex7d3b2d31

2101030193 has 4 divisors (see below), whose sum is σ = 2173479540. Its totient is φ = 2028580848.

The previous prime is 2101030147. The next prime is 2101030213. The reversal of 2101030193 is 3910301012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1645762624 + 455267569 = 40568^2 + 21337^2 .

It is a cyclic number.

It is not a de Polignac number, because 2101030193 - 212 = 2101026097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2101030103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36224630 + ... + 36224687.

It is an arithmetic number, because the mean of its divisors is an integer number (543369885).

Almost surely, 22101030193 is an apocalyptic number.

It is an amenable number.

2101030193 is a deficient number, since it is larger than the sum of its proper divisors (72449347).

2101030193 is an equidigital number, since it uses as much as digits as its factorization.

2101030193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72449346.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 2101030193 is about 45836.9958985098. The cubic root of 2101030193 is about 1280.7885345151.

The spelling of 2101030193 in words is "two billion, one hundred one million, thirty thousand, one hundred ninety-three".

Divisors: 1 29 72449317 2101030193