Search a number
-
+
102026103231 = 3135869445741
BaseRepresentation
bin101111100000100111…
…0101100100110111111
3100202100101010001101010
41133001032230212333
53132422140300411
6114511541250303
710241205366003
oct1370116544677
9322311101333
10102026103231
113a2a6091488
1217934403993
13980c4c61b0
144d1c192703
1529c20567a6
hex17c13ac9bf

102026103231 has 16 divisors (see below), whose sum is σ = 146524310240. Its totient is φ = 62774455680.

The previous prime is 102026103229. The next prime is 102026103247. The reversal of 102026103231 is 132301620201.

It is not a de Polignac number, because 102026103231 - 21 = 102026103229 is a prime.

It is a super-2 number, since 2×1020261032312 (a number of 23 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 = 102026103198 and 102026103207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102026103631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6021 + ... + 451761.

It is an arithmetic number, because the mean of its divisors is an integer number (9157769390).

Almost surely, 2102026103231 is an apocalyptic number.

102026103231 is a deficient number, since it is larger than the sum of its proper divisors (44498207009).

102026103231 is a wasteful number, since it uses less digits than its factorization.

102026103231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451626.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 102026103231 its reverse (132301620201), we get a palindrome (234327723432).

The spelling of 102026103231 in words is "one hundred two billion, twenty-six million, one hundred three thousand, two hundred thirty-one".

Divisors: 1 3 13 39 5869 17607 76297 228891 445741 1337223 5794633 17383899 2616053929 7848161787 34008701077 102026103231