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28793441 = 191233647
BaseRepresentation
bin110110111010…
…1101001100001
32000011212011202
41231311221201
524332342231
62505050545
7466511615
oct155655141
960155152
1028793441
1115286a36
129786a55
135c71a51
143b77345
1527db5cb
hex1b75a61

28793441 has 8 divisors (see below), whose sum is σ = 29113344. Its totient is φ = 28475680.

The previous prime is 28793431. The next prime is 28793449. The reversal of 28793441 is 14439782.

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 28793441 - 26 = 28793377 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28793395 and 28793404.

It is not an unprimeable number, because it can be changed into a prime (28793449) 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, 44180 + ... + 44826.

It is an arithmetic number, because the mean of its divisors is an integer number (3639168).

Almost surely, 228793441 is an apocalyptic number.

It is an amenable number.

28793441 is a deficient number, since it is larger than the sum of its proper divisors (319903).

28793441 is a wasteful number, since it uses less digits than its factorization.

28793441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071.

The product of its digits is 48384, while the sum is 38.

The square root of 28793441 is about 5365.9520124578. The cubic root of 28793441 is about 306.5005016372.

The spelling of 28793441 in words is "twenty-eight million, seven hundred ninety-three thousand, four hundred forty-one".

Divisors: 1 191 233 647 44503 123577 150751 28793441