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211113982 = 2203951769
BaseRepresentation
bin11001001010101…
…01011111111110
3112201020200221101
430211111133332
5413021121412
632540523314
75142303442
oct1445253776
9481220841
10211113982
11a9194072
125a85053a
1334978c21
1420076822
1513802457
hexc9557fe

211113982 has 8 divisors (see below), whose sum is σ = 316832400. Its totient is φ = 105503184.

The previous prime is 211113979. The next prime is 211114009. The reversal of 211113982 is 289311112.

211113982 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×2111139822 = 89138226791792648, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211113982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21807 + ... + 29962.

It is an arithmetic number, because the mean of its divisors is an integer number (39604050).

Almost surely, 2211113982 is an apocalyptic number.

211113982 is a deficient number, since it is larger than the sum of its proper divisors (105718418).

211113982 is a wasteful number, since it uses less digits than its factorization.

211113982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53810.

The product of its digits is 864, while the sum is 28.

The square root of 211113982 is about 14529.7619388619. The cubic root of 211113982 is about 595.4413616701.

The spelling of 211113982 in words is "two hundred eleven million, one hundred thirteen thousand, nine hundred eighty-two".

Divisors: 1 2 2039 4078 51769 103538 105556991 211113982