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28338550801 = 112805191841
BaseRepresentation
bin11010011001000110…
…111111100000010001
32201010221222112112121
4122121012333200101
5431014132111201
621004001254241
72022153464431
oct323106774021
981127875477
1028338550801
1111022411720
1255aa634381
1328980c5872
14152b91a2c1
15b0cd3c9a1
hex6991bf811

28338550801 has 8 divisors (see below), whose sum is σ = 30916221408. Its totient is φ = 25761120000.

The previous prime is 28338550789. The next prime is 28338550819. The reversal of 28338550801 is 10805583382.

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

It is a de Polignac number, because none of the positive numbers 2k-28338550801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28338560801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262641 + ... + 354481.

It is an arithmetic number, because the mean of its divisors is an integer number (3864527676).

Almost surely, 228338550801 is an apocalyptic number.

It is an amenable number.

28338550801 is a deficient number, since it is larger than the sum of its proper divisors (2577670607).

28338550801 is a wasteful number, since it uses less digits than its factorization.

28338550801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119903.

The product of its (nonzero) digits is 230400, while the sum is 43.

The spelling of 28338550801 in words is "twenty-eight billion, three hundred thirty-eight million, five hundred fifty thousand, eight hundred one".

Divisors: 1 11 28051 91841 308561 1010251 2576231891 28338550801