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102145432233 = 3133184487537
BaseRepresentation
bin101111100100001010…
…1111001101010101001
3100202122200122120222210
41133020111321222221
53133143212312413
6114531443035333
710244154563655
oct1371025715251
9322580576883
10102145432233
113a357485099
121796836bb49
13982b146880
144d2dd75a65
1529cc7783c3
hex17c8579aa9

102145432233 has 16 divisors (see below), whose sum is σ = 151401668096. Its totient is φ = 60831025920.

The previous prime is 102145432231. The next prime is 102145432253. The reversal of 102145432233 is 332234541201.

It is not a de Polignac number, because 102145432233 - 21 = 102145432231 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 102145432233.

It is not an unprimeable number, because it can be changed into a prime (102145432231) 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, 42242560 + ... + 42244977.

It is an arithmetic number, because the mean of its divisors is an integer number (9462604256).

Almost surely, 2102145432233 is an apocalyptic number.

102145432233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

102145432233 is a deficient number, since it is larger than the sum of its proper divisors (49256235863).

102145432233 is a wasteful number, since it uses less digits than its factorization.

102145432233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84487584.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 102145432233 its reverse (332234541201), we get a palindrome (434379973434).

The spelling of 102145432233 in words is "one hundred two billion, one hundred forty-five million, four hundred thirty-two thousand, two hundred thirty-three".

Divisors: 1 3 13 31 39 93 403 1209 84487537 253462611 1098337981 2619113647 3295013943 7857340941 34048477411 102145432233