Search a number
-
+
102152647687 is a prime number
BaseRepresentation
bin101111100100011000…
…1011011010000000111
3100202200012020011201211
41133020301123100013
53133202034211222
6114532301432251
710244303115166
oct1371061332007
9322605204654
10102152647687
113a360563182
121796a86b687
13982c7a1b7c
144d30cd33dd
1529cd201277
hex17c8c5b407

102152647687 has 2 divisors, whose sum is σ = 102152647688. Its totient is φ = 102152647686.

The previous prime is 102152647657. The next prime is 102152647721. The reversal of 102152647687 is 786746251201.

It is a weak prime.

It is an emirp because it is prime and its reverse (786746251201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102152647687 - 27 = 102152647559 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102152647687.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102152647657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51076323843 + 51076323844.

It is an arithmetic number, because the mean of its divisors is an integer number (51076323844).

Almost surely, 2102152647687 is an apocalyptic number.

102152647687 is a deficient number, since it is larger than the sum of its proper divisors (1).

102152647687 is an equidigital number, since it uses as much as digits as its factorization.

102152647687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1128960, while the sum is 49.

Adding to 102152647687 its reverse (786746251201), we get a palindrome (888898898888).

The spelling of 102152647687 in words is "one hundred two billion, one hundred fifty-two million, six hundred forty-seven thousand, six hundred eighty-seven".