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28554400001 = 311709129499
BaseRepresentation
bin11010100101111110…
…011001000100000001
32201201000010210222102
4122211332121010001
5431434411300001
621041231520145
72030414252411
oct324576310401
981630123872
1028554400001
111112323a396
12564a989055
132900a3bb9a
14154c466641
15b21c77e6b
hex6a5f99101

28554400001 has 8 divisors (see below), whose sum is σ = 28686840000. Its totient is φ = 28422221040.

The previous prime is 28554399997. The next prime is 28554400027. The reversal of 28554400001 is 10000445582.

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 28554400001 - 22 = 28554399997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28554400601) 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, 155750 + ... + 285248.

It is an arithmetic number, because the mean of its divisors is an integer number (3585855000).

Almost surely, 228554400001 is an apocalyptic number.

It is an amenable number.

28554400001 is a deficient number, since it is larger than the sum of its proper divisors (132439999).

28554400001 is a wasteful number, since it uses less digits than its factorization.

28554400001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130519.

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 28554400001 its reverse (10000445582), we get a palindrome (38554845583).

The spelling of 28554400001 in words is "twenty-eight billion, five hundred fifty-four million, four hundred thousand, one".

Divisors: 1 311 709 129499 220499 40274189 91814791 28554400001