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2105388932 = 223123372871
BaseRepresentation
bin111110101111101…
…1010111110000100
312102201122211122212
41331133122332010
513302434421212
6544525442552
7103113340103
oct17537327604
95381584585
102105388932
11990489959
124a9110458
1327725698a
1415d89003a
15c4c7de22
hex7d7daf84

2105388932 has 24 divisors (see below), whose sum is σ = 3819658752. Its totient is φ = 1014350400.

The previous prime is 2105388931. The next prime is 2105388941. The reversal of 2105388932 is 2398835012.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2105388932.

It is not an unprimeable number, because it can be changed into a prime (2105388931) 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, 7544 + ... + 65327.

It is an arithmetic number, because the mean of its divisors is an integer number (159152448).

Almost surely, 22105388932 is an apocalyptic number.

It is an amenable number.

2105388932 is a deficient number, since it is larger than the sum of its proper divisors (1714269820).

2105388932 is a wasteful number, since it uses less digits than its factorization.

2105388932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73139 (or 73137 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 2105388932 is about 45884.5173451786. The cubic root of 2105388932 is about 1281.6736188704.

The spelling of 2105388932 in words is "two billion, one hundred five million, three hundred eighty-eight thousand, nine hundred thirty-two".

Divisors: 1 2 4 31 62 124 233 466 932 7223 14446 28892 72871 145742 291484 2259001 4518002 9036004 16978943 33957886 67915772 526347233 1052694466 2105388932