Search a number
-
+
28490414 = 283171629
BaseRepresentation
bin110110010101…
…1101010101110
31222121110111112
41230223222232
524243143124
62454352022
7464110301
oct154535256
958543445
1028490414
111509a2a7
12965b612
135b96b44
143ad8b38
15277b90e
hex1b2baae

28490414 has 8 divisors (see below), whose sum is σ = 43250760. Its totient is φ = 14073496.

The previous prime is 28490411. The next prime is 28490417. The reversal of 28490414 is 41409482.

It is an interprime number because it is at equal distance from previous prime (28490411) and next prime (28490417).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28490411) 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, 85649 + ... + 85980.

It is an arithmetic number, because the mean of its divisors is an integer number (5406345).

Almost surely, 228490414 is an apocalyptic number.

28490414 is a deficient number, since it is larger than the sum of its proper divisors (14760346).

28490414 is a wasteful number, since it uses less digits than its factorization.

28490414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171714.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 28490414 is about 5337.6412393491. The cubic root of 28490414 is about 305.4214866057.

Adding to 28490414 its reverse (41409482), we get a palindrome (69899896).

The spelling of 28490414 in words is "twenty-eight million, four hundred ninety thousand, four hundred fourteen".

Divisors: 1 2 83 166 171629 343258 14245207 28490414