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2143202223 = 317195234229
BaseRepresentation
bin111111110111110…
…1010101110101111
312112100210221202010
41333233222232233
513342124432343
6552400132303
7104052626661
oct17757525657
95470727663
102143202223
119aa866608
124b9907093
132820360c6
141648d4531
15c824cd33
hex7fbeabaf

2143202223 has 32 divisors (see below), whose sum is σ = 3191788800. Its totient is φ = 1271241216.

The previous prime is 2143202221. The next prime is 2143202273. The reversal of 2143202223 is 3222023412.

It is not a de Polignac number, because 2143202223 - 21 = 2143202221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2143202223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143202221) 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, 504673 + ... + 508901.

It is an arithmetic number, because the mean of its divisors is an integer number (99743400).

Almost surely, 22143202223 is an apocalyptic number.

2143202223 is a deficient number, since it is larger than the sum of its proper divisors (1048586577).

2143202223 is a wasteful number, since it uses less digits than its factorization.

2143202223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4791.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 2143202223 is about 46294.7321301247. The cubic root of 2143202223 is about 1289.3011905306.

Adding to 2143202223 its reverse (3222023412), we get a palindrome (5365225635).

The spelling of 2143202223 in words is "two billion, one hundred forty-three million, two hundred two thousand, two hundred twenty-three".

Divisors: 1 3 17 19 51 57 323 523 969 1569 4229 8891 9937 12687 26673 29811 71893 80351 168929 215679 241053 506787 1365967 2211767 4097901 6635301 37600039 42023573 112800117 126070719 714400741 2143202223