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2164937330 = 251923796271
BaseRepresentation
bin1000000100001010…
…0101001001110010
312120212201012201002
42001002211021302
513413210443310
6554454042002
7104435443433
oct20102451162
95525635632
102164937330
11a11061506
12505049302
132866a620a
1416775148a
15ca0e2da5
hex810a5272

2164937330 has 64 divisors (see below), whose sum is σ = 4335206400. Its totient is φ = 774671040.

The previous prime is 2164937329. The next prime is 2164937339. The reversal of 2164937330 is 337394612.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (2164937339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 342095 + ... + 348365.

It is an arithmetic number, because the mean of its divisors is an integer number (67737600).

Almost surely, 22164937330 is an apocalyptic number.

2164937330 is an abundant number, since it is smaller than the sum of its proper divisors (2170269070).

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

2164937330 is a wasteful number, since it uses less digits than its factorization.

2164937330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6399.

The product of its (nonzero) digits is 81648, while the sum is 38.

The square root of 2164937330 is about 46528.8870488001. The cubic root of 2164937330 is about 1293.6449862875.

The spelling of 2164937330 in words is "two billion, one hundred sixty-four million, nine hundred thirty-seven thousand, three hundred thirty".

Divisors: 1 2 5 10 19 23 38 46 79 95 115 158 190 230 395 437 790 874 1501 1817 2185 3002 3634 4370 6271 7505 9085 12542 15010 18170 31355 34523 62710 69046 119149 144233 172615 238298 288466 345230 495409 595745 721165 990818 1191490 1442330 2477045 2740427 4954090 5480854 9412771 11394407 13702135 18825542 22788814 27404270 47063855 56972035 94127710 113944070 216493733 432987466 1082468665 2164937330