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1443010230221 = 72343208437127
BaseRepresentation
bin10100111111111010000…
…111001011011111001101
312002221122212022212112112
4110333322013023133031
5142120241104331341
63022524301113405
7206153065402160
oct24777207133715
95087585285475
101443010230221
11506a827238aa
121b37b9258865
13a60c9513241
144dbb08c3ad7
152780905baeb
hex14ffa1cb7cd

1443010230221 has 16 divisors (see below), whose sum is σ = 1760876857344. Its totient is φ = 1155575426544.

The previous prime is 1443010230217. The next prime is 1443010230289. The reversal of 1443010230221 is 1220320103441.

It is not a de Polignac number, because 1443010230221 - 22 = 1443010230217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1443010230421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104211641 + ... + 104225486.

It is an arithmetic number, because the mean of its divisors is an integer number (110054803584).

Almost surely, 21443010230221 is an apocalyptic number.

It is an amenable number.

1443010230221 is a deficient number, since it is larger than the sum of its proper divisors (317866627123).

1443010230221 is a wasteful number, since it uses less digits than its factorization.

1443010230221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208437200.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1443010230221 its reverse (1220320103441), we get a palindrome (2663330333662).

The spelling of 1443010230221 in words is "one trillion, four hundred forty-three billion, ten million, two hundred thirty thousand, two hundred twenty-one".

Divisors: 1 7 23 43 161 301 989 6923 208437127 1459059889 4794053921 8962796461 33558377447 62739575227 206144318603 1443010230221