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100212211 = 1179115319
BaseRepresentation
bin1011111100100…
…01110111110011
320222120022022101
411332101313303
5201123242321
613535521231
72324534611
oct576216763
9228508271
10100212211
1151626a10
1229689217
13179b9288
14d4486b1
158be7791
hex5f91df3

100212211 has 8 divisors (see below), whose sum is σ = 110707200. Its totient is φ = 89948040.

The previous prime is 100212163. The next prime is 100212223. The reversal of 100212211 is 112212001.

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 100212211 - 27 = 100212083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100215211) 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, 56791 + ... + 58528.

It is an arithmetic number, because the mean of its divisors is an integer number (13838400).

Almost surely, 2100212211 is an apocalyptic number.

100212211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

100212211 is a deficient number, since it is larger than the sum of its proper divisors (10494989).

100212211 is a wasteful number, since it uses less digits than its factorization.

100212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115409.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 100212211 is about 10010.6049267764. The cubic root of 100212211 is about 464.4869834518.

Adding to 100212211 its reverse (112212001), we get a palindrome (212424212).

The spelling of 100212211 in words is "one hundred million, two hundred twelve thousand, two hundred eleven".

Divisors: 1 11 79 869 115319 1268509 9110201 100212211