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4400231441421 = 31786279047871
BaseRepresentation
bin100000000001000001000…
…1110110110010000001101
3120120122202200202111212110
41000002002032312100031
51034043133222111141
613205234410454233
7632622560062344
oct100020216662015
916518680674773
104400231441421
111447144a31372
125b0964734379
1325bc2b37c15a
14112d8814ab5b
15796d7d6de16
hex400823b640d

4400231441421 has 8 divisors (see below), whose sum is σ = 6212091446784. Its totient is φ = 2760929531840.

The previous prime is 4400231441393. The next prime is 4400231441513. The reversal of 4400231441421 is 1241441320044.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4400231441421 - 26 = 4400231441357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4400231441621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43139523885 + ... + 43139523986.

It is an arithmetic number, because the mean of its divisors is an integer number (776511430848).

Almost surely, 24400231441421 is an apocalyptic number.

It is an amenable number.

4400231441421 is a deficient number, since it is larger than the sum of its proper divisors (1811860005363).

4400231441421 is a wasteful number, since it uses less digits than its factorization.

4400231441421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86279047891.

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 4400231441421 its reverse (1241441320044), we get a palindrome (5641672761465).

The spelling of 4400231441421 in words is "four trillion, four hundred billion, two hundred thirty-one million, four hundred forty-one thousand, four hundred twenty-one".

Divisors: 1 3 17 51 86279047871 258837143613 1466743813807 4400231441421