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28246411 = 103274237
BaseRepresentation
bin110101111000…
…0000110001011
31222011001210101
41223300012023
524212341121
62445230231
7462043024
oct153600613
958131711
1028246411
1114a42a46
129562377
135b0ca6b
143a73c4b
15272e491
hex1af018b

28246411 has 4 divisors (see below), whose sum is σ = 28520752. Its totient is φ = 27972072.

The previous prime is 28246409. The next prime is 28246453. The reversal of 28246411 is 11464282.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11464282 = 25732141.

It is a cyclic number.

It is not a de Polignac number, because 28246411 - 21 = 28246409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28246411.

It is not an unprimeable number, because it can be changed into a prime (28246481) 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, 137016 + ... + 137221.

It is an arithmetic number, because the mean of its divisors is an integer number (7130188).

Almost surely, 228246411 is an apocalyptic number.

28246411 is a deficient number, since it is larger than the sum of its proper divisors (274341).

28246411 is a wasteful number, since it uses less digits than its factorization.

28246411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274340.

The product of its digits is 3072, while the sum is 28.

The square root of 28246411 is about 5314.7352709237. The cubic root of 28246411 is about 304.5470693691.

The spelling of 28246411 in words is "twenty-eight million, two hundred forty-six thousand, four hundred eleven".

Divisors: 1 103 274237 28246411