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2113097281 = 16361721011
BaseRepresentation
bin111110111110011…
…0100111001000001
312110021011110112021
41331330310321001
513311423103111
6545403001441
7103236013321
oct17574647101
95407143467
102113097281
11994874299
124ab809281
13278a25429
141608d9281
15c57a2d71
hex7df34e41

2113097281 has 8 divisors (see below), whose sum is σ = 2129608224. Its totient is φ = 2096629920.

The previous prime is 2113097191. The next prime is 2113097303. The reversal of 2113097281 is 1827903112.

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 2113097281 - 217 = 2112966209 is a prime.

It is a super-2 number, since 2×21130972812 = 8930360237939185922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2113097081) 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, 90066 + ... + 111076.

It is an arithmetic number, because the mean of its divisors is an integer number (266201028).

Almost surely, 22113097281 is an apocalyptic number.

It is an amenable number.

2113097281 is a deficient number, since it is larger than the sum of its proper divisors (16510943).

2113097281 is a wasteful number, since it uses less digits than its factorization.

2113097281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21791.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 2113097281 is about 45968.4378786141. The cubic root of 2113097281 is about 1283.2358883826.

The spelling of 2113097281 in words is "two billion, one hundred thirteen million, ninety-seven thousand, two hundred eighty-one".

Divisors: 1 163 617 21011 100571 3424793 12963787 2113097281