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2113211019 = 31813891733
BaseRepresentation
bin111110111110101…
…0000101010001011
312110021101020112210
41331331100222023
513311440223034
6545405240203
7103236666033
oct17575205213
95407336483
102113211019
11994941797
124ab863063
13278a6512a
141609288c3
15c57c68e9
hex7df50a8b

2113211019 has 8 divisors (see below), whose sum is σ = 2833182352. Its totient is φ = 1401023520.

The previous prime is 2113211011. The next prime is 2113211041. The reversal of 2113211019 is 9101123112.

It is a happy number.

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

It is not a de Polignac number, because 2113211019 - 23 = 2113211011 is a prime.

It is a super-2 number, since 2×21132110192 = 8931321621646036722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2113210986 and 2113211004.

It is not an unprimeable number, because it can be changed into a prime (2113211011) 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, 1945324 + ... + 1946409.

It is an arithmetic number, because the mean of its divisors is an integer number (354147794).

Almost surely, 22113211019 is an apocalyptic number.

2113211019 is a deficient number, since it is larger than the sum of its proper divisors (719971333).

2113211019 is a wasteful number, since it uses less digits than its factorization.

2113211019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3891917.

The product of its (nonzero) digits is 108, while the sum is 21.

The square root of 2113211019 is about 45969.6749934128. The cubic root of 2113211019 is about 1283.2589114692.

The spelling of 2113211019 in words is "two billion, one hundred thirteen million, two hundred eleven thousand, nineteen".

Divisors: 1 3 181 543 3891733 11675199 704403673 2113211019