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28038125411711 = 48624115766301
BaseRepresentation
bin1100110000000001000101…
…00000010101110101111111
310200021102022011112111022122
412120000202200111311333
512133334040101133321
6135344311554033155
75622454612501022
oct630004240256577
9120242264474278
1028038125411711
118a2a9a192a398
123189b875787bb
131284ca37832bc
146cd0a41371b9
15339508e448ab
hex198022815d7f

28038125411711 has 4 divisors (see below), whose sum is σ = 28038136040424. Its totient is φ = 28038114783000.

The previous prime is 28038125411701. The next prime is 28038125411713. The reversal of 28038125411711 is 11711452183082.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 28038125411711 - 226 = 28038058302847 is a prime.

It is a super-2 number, since 2×280381254117112 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28038125411713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1979261 + ... + 7745561.

It is an arithmetic number, because the mean of its divisors is an integer number (7009534010106).

Almost surely, 228038125411711 is an apocalyptic number.

28038125411711 is a deficient number, since it is larger than the sum of its proper divisors (10628713).

28038125411711 is an equidigital number, since it uses as much as digits as its factorization.

28038125411711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10628712.

The product of its (nonzero) digits is 107520, while the sum is 44.

Adding to 28038125411711 its reverse (11711452183082), we get a palindrome (39749577594793).

The spelling of 28038125411711 in words is "twenty-eight trillion, thirty-eight billion, one hundred twenty-five million, four hundred eleven thousand, seven hundred eleven".

Divisors: 1 4862411 5766301 28038125411711