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11000210021 = 181307197963
BaseRepresentation
bin10100011111010100…
…11110001001100101
31001101121211120022222
422033222132021211
5140012023210041
65015312402125
7536411146103
oct121752361145
931347746288
1011000210021
114735371669
12216bb46345
131063c9c118
14764d26c73
15445ad174b
hex28fa9e265

11000210021 has 8 divisors (see below), whose sum is σ = 11097069984. Its totient is φ = 10903746960.

The previous prime is 11000209951. The next prime is 11000210041. The reversal of 11000210021 is 12001200011.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11000210021 is a prime.

It is a super-2 number, since 2×110002100212 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11000209990 and 11000210008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11000210041) 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, 43415 + ... + 154548.

It is an arithmetic number, because the mean of its divisors is an integer number (1387133748).

Almost surely, 211000210021 is an apocalyptic number.

It is an amenable number.

11000210021 is a deficient number, since it is larger than the sum of its proper divisors (96859963).

11000210021 is a wasteful number, since it uses less digits than its factorization.

11000210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198451.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 11000210021 its reverse (12001200011), we get a palindrome (23001410032).

The spelling of 11000210021 in words is "eleven billion, two hundred ten thousand, twenty-one".

Divisors: 1 181 307 55567 197963 35831303 60774641 11000210021