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102027381880 = 2352550684547
BaseRepresentation
bin101111100000101001…
…1100100110001111000
3100202100110112000100111
41133001103210301320
53132423002210010
6114512024514104
710241222302564
oct1370123446170
9322313460314
10102027381880
113a2a6885116
121793491b934
13980c8531a8
144d1c4066a4
1529c220a58a
hex17c14e4c78

102027381880 has 16 divisors (see below), whose sum is σ = 229561609320. Its totient is φ = 40810952736.

The previous prime is 102027381871. The next prime is 102027381887. The reversal of 102027381880 is 88183720201.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 2550684547 = 102027381880 / (1 + 0 + 2 + 0 + 2 + 7 + 3 + 8 + 1 + 8 + 8 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102027381887) 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, 1275342234 + ... + 1275342313.

Almost surely, 2102027381880 is an apocalyptic number.

102027381880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102027381880 is an abundant number, since it is smaller than the sum of its proper divisors (127534227440).

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

102027381880 is a wasteful number, since it uses less digits than its factorization.

102027381880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2550684558 (or 2550684554 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 40.

The spelling of 102027381880 in words is "one hundred two billion, twenty-seven million, three hundred eighty-one thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 2550684547 5101369094 10202738188 12753422735 20405476376 25506845470 51013690940 102027381880