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2129393205 = 3552397333
BaseRepresentation
bin111111011101011…
…1111011000110101
312111101211101100000
41332322333120311
513330111040310
6551144141513
7103524354312
oct17672773065
95441741300
102129393205
119a2a946a5
124b5167899
1327c20c8a4
14162b3bd09
15c6e214c0
hex7eebf635

2129393205 has 48 divisors (see below), whose sum is σ = 3844189440. Its totient is φ = 1130770368.

The previous prime is 2129393177. The next prime is 2129393207. The reversal of 2129393205 is 5023939212.

It is not a de Polignac number, because 2129393205 - 25 = 2129393173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2129393205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2129393207) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 286719 + ... + 294051.

It is an arithmetic number, because the mean of its divisors is an integer number (80087280).

Almost surely, 22129393205 is an apocalyptic number.

It is an amenable number.

2129393205 is a deficient number, since it is larger than the sum of its proper divisors (1714796235).

2129393205 is an equidigital number, since it uses as much as digits as its factorization.

2129393205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7592 (or 7580 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 2129393205 is about 46145.3486821803. The cubic root of 2129393205 is about 1286.5261593714.

The spelling of 2129393205 in words is "two billion, one hundred twenty-nine million, three hundred ninety-three thousand, two hundred five".

Divisors: 1 3 5 9 15 27 45 81 135 239 243 405 717 1195 1215 2151 3585 6453 7333 10755 19359 21999 32265 36665 58077 65997 96795 109995 197991 290385 329985 593973 989955 1752587 1781919 2969865 5257761 8762935 8909595 15773283 26288805 47319849 78866415 141959547 236599245 425878641 709797735 2129393205