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2101133309 = 111711236007
BaseRepresentation
bin111110100111100…
…1011111111111101
312102102122122001012
41331033023333331
513300342231214
6544254325005
7103032224042
oct17517137775
95372578035
102101133309
11989042610
124a77b9765
132763c6962
1415d0a31c9
15c46dd03e
hex7d3cbffd

2101133309 has 8 divisors (see below), whose sum is σ = 2426977728. Its totient is φ = 1797760960.

The previous prime is 2101133249. The next prime is 2101133323. The reversal of 2101133309 is 9033311012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2101133309 - 224 = 2084356093 is a prime.

It is a super-2 number, since 2×21011333092 = 8829522364378578962, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101133399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5617817 + ... + 5618190.

It is an arithmetic number, because the mean of its divisors is an integer number (303372216).

Almost surely, 22101133309 is an apocalyptic number.

It is an amenable number.

2101133309 is a deficient number, since it is larger than the sum of its proper divisors (325844419).

2101133309 is a wasteful number, since it uses less digits than its factorization.

2101133309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11236035.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 2101133309 is about 45838.1206966429. The cubic root of 2101133309 is about 1280.8094873522.

The spelling of 2101133309 in words is "two billion, one hundred one million, one hundred thirty-three thousand, three hundred nine".

Divisors: 1 11 17 187 11236007 123596077 191012119 2101133309