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211059011 = 1921913061
BaseRepresentation
bin11001001010010…
…00000101000011
3112201010220112102
430211020011003
5413012342021
632535421015
75141654252
oct1445100503
9481126472
10211059011
11a9156839
125a82476b
1334959bb7
1420060799
15137e100b
hexc948143

211059011 has 12 divisors (see below), whose sum is σ = 223991424. Its totient is φ = 198838800.

The previous prime is 211058977. The next prime is 211059031. The reversal of 211059011 is 110950112.

It is a de Polignac number, because none of the positive numbers 2k-211059011 is a prime.

It is a super-2 number, since 2×2110590112 = 89091812248596242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211059031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67421 + ... + 70481.

It is an arithmetic number, because the mean of its divisors is an integer number (18665952).

Almost surely, 2211059011 is an apocalyptic number.

211059011 is a deficient number, since it is larger than the sum of its proper divisors (12932413).

211059011 is a wasteful number, since it uses less digits than its factorization.

211059011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3290 (or 3271 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 20.

The square root of 211059011 is about 14527.8701467214. The cubic root of 211059011 is about 595.3896757701.

The spelling of 211059011 in words is "two hundred eleven million, fifty-nine thousand, eleven".

Divisors: 1 19 191 361 3061 3629 58159 68951 584651 1105021 11108369 211059011