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102001102211 = 551271850293
BaseRepresentation
bin101111011111110111…
…1010100110110000011
3100202021122001212102102
41132333233110312003
53132344240232321
6114505245341015
710240453030511
oct1367757246603
9322248055372
10102001102211
113a292a65888
1217927b6776b
1398072816a8
144d18b254b1
1529bec68c0b
hex17bfbd4d83

102001102211 has 4 divisors (see below), whose sum is σ = 102003007632. Its totient is φ = 101999196792.

The previous prime is 102001102183. The next prime is 102001102271. The reversal of 102001102211 is 112201100201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-102001102211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102001102192 and 102001102201.

It is not an unprimeable number, because it can be changed into a prime (102001102271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 870020 + ... + 980273.

It is an arithmetic number, because the mean of its divisors is an integer number (25500751908).

Almost surely, 2102001102211 is an apocalyptic number.

102001102211 is a deficient number, since it is larger than the sum of its proper divisors (1905421).

102001102211 is an equidigital number, since it uses as much as digits as its factorization.

102001102211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1905420.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 102001102211 its reverse (112201100201), we get a palindrome (214202202412).

The spelling of 102001102211 in words is "one hundred two billion, one million, one hundred two thousand, two hundred eleven".

Divisors: 1 55127 1850293 102001102211