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2143314228 = 22311191038297
BaseRepresentation
bin111111111000000…
…0110000100110100
312112101000122101110
41333300012010310
513342142023403
6552402355020
7104053604346
oct17760060464
95471018343
102143314228
119aa932780
124b995ba70
13282075093
14164923296
15c8271103
hex7fc06134

2143314228 has 96 divisors (see below), whose sum is σ = 5799306240. Its totient is φ = 609258240.

The previous prime is 2143314227. The next prime is 2143314241. The reversal of 2143314228 is 8224133412.

It is a junction number, because it is equal to n+sod(n) for n = 2143314195 and 2143314204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143314227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 254176 + ... + 262472.

It is an arithmetic number, because the mean of its divisors is an integer number (60409440).

Almost surely, 22143314228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2143314228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2899653120).

2143314228 is an abundant number, since it is smaller than the sum of its proper divisors (3655992012).

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

2143314228 is a wasteful number, since it uses less digits than its factorization.

2143314228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8437 (or 8435 counting only the distinct ones).

The product of its digits is 9216, while the sum is 30.

The square root of 2143314228 is about 46295.9418091910. The cubic root of 2143314228 is about 1289.3236500171.

The spelling of 2143314228 in words is "two billion, one hundred forty-three million, three hundred fourteen thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 11 12 19 22 33 38 44 57 66 76 103 114 132 206 209 228 309 412 418 618 627 836 1133 1236 1254 1957 2266 2508 3399 3914 4532 5871 6798 7828 8297 11742 13596 16594 21527 23484 24891 33188 43054 49782 64581 86108 91267 99564 129162 157643 182534 258324 273801 315286 365068 472929 547602 630572 854591 945858 1095204 1709182 1734073 1891716 2563773 3418364 3468146 5127546 5202219 6936292 9400501 10255092 10404438 16237229 18801002 20808876 28201503 32474458 37602004 48711687 56403006 64948916 97423374 112806012 178609519 194846748 357219038 535828557 714438076 1071657114 2143314228