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2164458288081 = 31289559725443
BaseRepresentation
bin11111011111110011110…
…001000111001111010001
321122220211211010111110210
4133133303301013033101
5240430302310204311
64334201032514333
7312243202613505
oct37376361071721
97586754114423
102164458288081
11764a3a304851
122ab5a084b9a9
1312915236197b
1476a90532305
153b4810693a6
hex1f7f3c473d1

2164458288081 has 8 divisors (see below), whose sum is σ = 2888183291040. Its totient is φ = 1441852738592.

The previous prime is 2164458288067. The next prime is 2164458288101. The reversal of 2164458288081 is 1808828544612.

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

It is a cyclic number.

It is not a de Polignac number, because 2164458288081 - 213 = 2164458279889 is a prime.

It is a super-2 number, since 2×21644582880812 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2164458288011) 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, 279858855 + ... + 279866588.

It is an arithmetic number, because the mean of its divisors is an integer number (361022911380).

Almost surely, 22164458288081 is an apocalyptic number.

It is an amenable number.

2164458288081 is a deficient number, since it is larger than the sum of its proper divisors (723725002959).

2164458288081 is a wasteful number, since it uses less digits than its factorization.

2164458288081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559726735.

The product of its (nonzero) digits is 7864320, while the sum is 57.

The spelling of 2164458288081 in words is "two trillion, one hundred sixty-four billion, four hundred fifty-eight million, two hundred eighty-eight thousand, eighty-one".

Divisors: 1 3 1289 3867 559725443 1679176329 721486096027 2164458288081