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102434213020 = 2255639097177
BaseRepresentation
bin101111101100110001…
…1100000110010011100
3100210101211001011202111
41133121203200302130
53134241124304040
6115020240403404
710254262305316
oct1373143406234
9323354034674
10102434213020
113a4954963a7
1217a29016564
139875c16b89
144d5a4687b6
1529e7cbcdea
hex17d98e0c9c

102434213020 has 24 divisors (see below), whose sum is σ = 215493952464. Its totient is φ = 40900903296.

The previous prime is 102434213003. The next prime is 102434213033. The reversal of 102434213020 is 20312434201.

It is a junction number, because it is equal to n+sod(n) for n = 102434212982 and 102434213000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4537329 + ... + 4559848.

It is an arithmetic number, because the mean of its divisors is an integer number (8978914686).

Almost surely, 2102434213020 is an apocalyptic number.

102434213020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102434213020 is an abundant number, since it is smaller than the sum of its proper divisors (113059739444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102434213020 is a wasteful number, since it uses less digits than its factorization.

102434213020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9097749 (or 9097747 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 102434213020 its reverse (20312434201), we get a palindrome (122746647221).

The spelling of 102434213020 in words is "one hundred two billion, four hundred thirty-four million, two hundred thirteen thousand, twenty".

Divisors: 1 2 4 5 10 20 563 1126 2252 2815 5630 11260 9097177 18194354 36388708 45485885 90971770 181943540 5121710651 10243421302 20486842604 25608553255 51217106510 102434213020