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102002302331 = 419243442249
BaseRepresentation
bin101111011111111001…
…1111001110101111011
3100202021201022211200022
41132333303321311323
53132400042133311
6114505331201055
710240466156426
oct1367763716573
9322251284608
10102002302331
113a293705516
121792844618b
1398075b1a17
144d18d589bd
1529bee045db
hex17bfcf9d7b

102002302331 has 4 divisors (see below), whose sum is σ = 102245745000. Its totient is φ = 101758859664.

The previous prime is 102002302309. The next prime is 102002302333. The reversal of 102002302331 is 133203200201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133203200201 = 235791443487.

It is a cyclic number.

It is not a de Polignac number, because 102002302331 - 214 = 102002285947 is a prime.

It is a super-2 number, since 2×1020023023312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102002302333) 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, 121720706 + ... + 121721543.

It is an arithmetic number, because the mean of its divisors is an integer number (25561436250).

Almost surely, 2102002302331 is an apocalyptic number.

102002302331 is a deficient number, since it is larger than the sum of its proper divisors (243442669).

102002302331 is an equidigital number, since it uses as much as digits as its factorization.

102002302331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243442668.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 102002302331 its reverse (133203200201), we get a palindrome (235205502532).

The spelling of 102002302331 in words is "one hundred two billion, two million, three hundred two thousand, three hundred thirty-one".

Divisors: 1 419 243442249 102002302331