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9788472748879 = 112831795445007
BaseRepresentation
bin1000111001110000111001…
…1100001110101101001111
31021122202202111101112112021
42032130032130032231033
52240333243010431004
632452432353551011
72030123323361206
oct216341634165517
937582674345467
109788472748879
1131342a4755500
1211210a3875467
13560083907bc6
1425ba9c13023d
1511e9499d1d54
hex8e70e70eb4f

9788472748879 has 24 divisors (see below), whose sum is σ = 10949693287680. Its totient is φ = 8742283833360.

The previous prime is 9788472748861. The next prime is 9788472748903.

9788472748879 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 9788472748879 - 29 = 9788472748367 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9788472748879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9788472718879) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 924807 + ... + 4520200.

It is an arithmetic number, because the mean of its divisors is an integer number (456237220320).

Almost surely, 29788472748879 is an apocalyptic number.

9788472748879 is a deficient number, since it is larger than the sum of its proper divisors (1161220538801).

9788472748879 is a wasteful number, since it uses less digits than its factorization.

9788472748879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5445291 (or 5445280 counting only the distinct ones).

The product of its digits is 25491013632, while the sum is 88.

The spelling of 9788472748879 in words is "nine trillion, seven hundred eighty-eight billion, four hundred seventy-two million, seven hundred forty-eight thousand, eight hundred seventy-nine".

Divisors: 1 11 83 121 179 913 1969 10043 14857 21659 163427 1797697 5445007 59895077 451935581 658845847 974656253 4971291391 10721218783 54684205301 80896468999 117933406613 889861158989 9788472748879