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28900005110011 = 7149293130172689
BaseRepresentation
bin1101001001000110011101…
…00010011110000011111011
310210022210222001020121101001
412210203032202132003323
512241444202302010021
6141244251251105431
76041646032163520
oct644431642360373
9123283861217331
1028900005110011
119232472510312
1232a90212a2277
131318349732b69
1471caa6853147
15351b4e9d7091
hex1a48ce89e0fb

28900005110011 has 32 divisors (see below), whose sum is σ = 33389831664000. Its totient is φ = 24502019942400.

The previous prime is 28900005109991. The next prime is 28900005110027. The reversal of 28900005110011 is 11001150000982.

It is not a de Polignac number, because 28900005110011 - 223 = 28899996721403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28900005110071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 397547955 + ... + 397620643.

It is an arithmetic number, because the mean of its divisors is an integer number (1043432239500).

Almost surely, 228900005110011 is an apocalyptic number.

28900005110011 is a deficient number, since it is larger than the sum of its proper divisors (4489826553989).

28900005110011 is a wasteful number, since it uses less digits than its factorization.

28900005110011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74439.

The product of its (nonzero) digits is 720, while the sum is 28.

Adding to 28900005110011 its reverse (11001150000982), we get a palindrome (39901155110993).

The spelling of 28900005110011 in words is "twenty-eight trillion, nine hundred billion, five million, one hundred ten thousand, eleven".

Divisors: 1 7 149 293 1043 1301 2051 9107 43657 72689 193849 305599 381193 508823 1356943 2668351 10830661 21297877 56797757 75814627 94568389 149085139 397584299 661978723 3173383673 14090689961 22213685711 27708537977 98634829727 193959765839 4128572158573 28900005110011