Search a number
-
+
211098901 = 1323967943
BaseRepresentation
bin11001001010100…
…01110100010101
3112201012221020211
430211101310111
5413020131101
632540325421
75142211456
oct1445216425
9481187224
10211098901
11a9183802
125a843871
13349720c0
142007112d
15137ecc51
hexc951d15

211098901 has 8 divisors (see below), whose sum is σ = 228291840. Its totient is φ = 194042352.

The previous prime is 211098893. The next prime is 211098907. The reversal of 211098901 is 109890112.

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 211098901 - 23 = 211098893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211098907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30865 + ... + 37078.

It is an arithmetic number, because the mean of its divisors is an integer number (28536480).

Almost surely, 2211098901 is an apocalyptic number.

It is an amenable number.

211098901 is a deficient number, since it is larger than the sum of its proper divisors (17192939).

211098901 is a wasteful number, since it uses less digits than its factorization.

211098901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68195.

The product of its (nonzero) digits is 1296, while the sum is 31.

The square root of 211098901 is about 14529.2429603197. The cubic root of 211098901 is about 595.4271828129.

The spelling of 211098901 in words is "two hundred eleven million, ninety-eight thousand, nine hundred one".

Divisors: 1 13 239 3107 67943 883259 16238377 211098901