Search a number
-
+
28553498 = 268320903
BaseRepresentation
bin110110011101…
…1000100011010
31222201200000222
41230323010122
524302202443
62500000042
7464462231
oct154730432
958650028
1028553498
1115132736
129690022
135bb977c
143b13b18
152790468
hex1b3b11a

28553498 has 8 divisors (see below), whose sum is σ = 42895008. Its totient is φ = 14255164.

The previous prime is 28553467. The next prime is 28553501. The reversal of 28553498 is 89435582.

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9086 + ... + 11817.

It is an arithmetic number, because the mean of its divisors is an integer number (5361876).

Almost surely, 228553498 is an apocalyptic number.

28553498 is a deficient number, since it is larger than the sum of its proper divisors (14341510).

28553498 is a wasteful number, since it uses less digits than its factorization.

28553498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21588.

The product of its digits is 345600, while the sum is 44.

The square root of 28553498 is about 5343.5473236419. The cubic root of 28553498 is about 305.6467437270.

The spelling of 28553498 in words is "twenty-eight million, five hundred fifty-three thousand, four hundred ninety-eight".

Divisors: 1 2 683 1366 20903 41806 14276749 28553498