Search a number
-
+
28035451 = 43364747
BaseRepresentation
bin110101011110…
…0100101111011
31221202100102001
41222330211323
524134113301
62440521431
7460204003
oct152744573
957670361
1028035451
11149094a4
129480277
135a67a32
143a1b003
1526dbc01
hex1abc97b

28035451 has 4 divisors (see below), whose sum is σ = 28100632. Its totient is φ = 27970272.

The previous prime is 28035407. The next prime is 28035457. The reversal of 28035451 is 15453082.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28035451 - 217 = 27904379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28035457) 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, 31941 + ... + 32806.

It is an arithmetic number, because the mean of its divisors is an integer number (7025158).

Almost surely, 228035451 is an apocalyptic number.

28035451 is a deficient number, since it is larger than the sum of its proper divisors (65181).

28035451 is an equidigital number, since it uses as much as digits as its factorization.

28035451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65180.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 28035451 is about 5294.8513671301. The cubic root of 28035451 is about 303.7869980392.

The spelling of 28035451 in words is "twenty-eight million, thirty-five thousand, four hundred fifty-one".

Divisors: 1 433 64747 28035451