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2129974284 = 2231393593557
BaseRepresentation
bin111111011110100…
…1101010000001100
312111102220220102110
41332331031100030
513330233134114
6551204424020
7103532324364
oct17675152014
95442826373
102129974284
119a3351229
124b53a8010
1327c384219
14162c4d9a4
15c6ed8759
hex7ef4d40c

2129974284 has 48 divisors (see below), whose sum is σ = 5021049600. Its totient is φ = 702722496.

The previous prime is 2129974261. The next prime is 2129974321. The reversal of 2129974284 is 4824799212.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 597034 + ... + 600590.

It is an arithmetic number, because the mean of its divisors is an integer number (104605200).

Almost surely, 22129974284 is an apocalyptic number.

It is an amenable number.

2129974284 is an abundant number, since it is smaller than the sum of its proper divisors (2891075316).

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

2129974284 is a wasteful number, since it uses less digits than its factorization.

2129974284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4062 (or 4060 counting only the distinct ones).

The product of its digits is 580608, while the sum is 48.

The square root of 2129974284 is about 46151.6444344078. The cubic root of 2129974284 is about 1286.6431731984.

The spelling of 2129974284 in words is "two billion, one hundred twenty-nine million, nine hundred seventy-four thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 12 139 278 359 417 556 718 834 1077 1436 1668 2154 3557 4308 7114 10671 14228 21342 42684 49901 99802 149703 199604 299406 494423 598812 988846 1276963 1483269 1977692 2553926 2966538 3830889 5107852 5933076 7661778 15323556 177497857 354995714 532493571 709991428 1064987142 2129974284