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211107117 = 31331174613
BaseRepresentation
bin11001001010100…
…11110100101101
3112201020100112010
430211103310231
5413020411432
632540431433
75142244434
oct1445236455
9481210463
10211107117
11a91899a1
125a848579
1334975a70
142007411b
15138003cc
hexc953d2d

211107117 has 16 divisors (see below), whose sum is σ = 312908288. Its totient is φ = 125720640.

The previous prime is 211107079. The next prime is 211107121. The reversal of 211107117 is 711701112.

It is not a de Polignac number, because 211107117 - 26 = 211107053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211107093 and 211107102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211107217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86098 + ... + 88515.

It is an arithmetic number, because the mean of its divisors is an integer number (19556768).

Almost surely, 2211107117 is an apocalyptic number.

It is an amenable number.

211107117 is a deficient number, since it is larger than the sum of its proper divisors (101801171).

211107117 is a wasteful number, since it uses less digits than its factorization.

211107117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174660.

The product of its (nonzero) digits is 98, while the sum is 21.

The square root of 211107117 is about 14529.5256976957. The cubic root of 211107117 is about 595.4349074170.

Adding to 211107117 its reverse (711701112), we get a palindrome (922808229).

The spelling of 211107117 in words is "two hundred eleven million, one hundred seven thousand, one hundred seventeen".

Divisors: 1 3 13 31 39 93 403 1209 174613 523839 2269969 5413003 6809907 16239009 70369039 211107117