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102231002213 = 149459684007
BaseRepresentation
bin101111100110101110…
…0010100110001100101
3100202212122122222221022
41133031130110301211
53133332114032323
6114544141100525
710246244116064
oct1371534246145
9322778588838
10102231002213
113a3a081008a
1217990b57745
139842aa72b2
144d3b48c1db
1529d502c4c8
hex17cd714c65

102231002213 has 4 divisors (see below), whose sum is σ = 102231835680. Its totient is φ = 102230168748.

The previous prime is 102231002179. The next prime is 102231002221. The reversal of 102231002213 is 312200132201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 312200132201 = 336139288077.

It is a cyclic number.

It is not a de Polignac number, because 102231002213 - 218 = 102230740069 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102231002191 and 102231002200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102231002243) 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, 192545 + ... + 491462.

It is an arithmetic number, because the mean of its divisors is an integer number (25557958920).

Almost surely, 2102231002213 is an apocalyptic number.

It is an amenable number.

102231002213 is a deficient number, since it is larger than the sum of its proper divisors (833467).

102231002213 is an equidigital number, since it uses as much as digits as its factorization.

102231002213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833466.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 102231002213 its reverse (312200132201), we get a palindrome (414431134414).

The spelling of 102231002213 in words is "one hundred two billion, two hundred thirty-one million, two thousand, two hundred thirteen".

Divisors: 1 149459 684007 102231002213