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2173108804 = 223125169821
BaseRepresentation
bin1000000110000111…
…0000001001000100
312121110002100212021
42001201300021010
513422303440204
6555345132524
7104565056116
oct20141601104
95543070767
102173108804
11a15732899
1250792a144
132882a76c9
1416887b3b6
15caba9154
hex81870244

2173108804 has 24 divisors (see below), whose sum is σ = 3941312256. Its totient is φ = 1047300000.

The previous prime is 2173108787. The next prime is 2173108807. The reversal of 2173108804 is 4088013712.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2173108804.

It is not an unprimeable number, because it can be changed into a prime (2173108807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3787 + ... + 66034.

It is an arithmetic number, because the mean of its divisors is an integer number (164221344).

Almost surely, 22173108804 is an apocalyptic number.

It is an amenable number.

2173108804 is a deficient number, since it is larger than the sum of its proper divisors (1768203452).

2173108804 is a wasteful number, since it uses less digits than its factorization.

2173108804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70107 (or 70105 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 2173108804 is about 46616.6151066334. The cubic root of 2173108804 is about 1295.2705474703.

The spelling of 2173108804 in words is "two billion, one hundred seventy-three million, one hundred eight thousand, eight hundred four".

Divisors: 1 2 4 31 62 124 251 502 1004 7781 15562 31124 69821 139642 279284 2164451 4328902 8657804 17525071 35050142 70100284 543277201 1086554402 2173108804