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28469995 = 55693999
BaseRepresentation
bin110110010011…
…0101011101011
31222120102111021
41230212223223
524242014440
62454113311
7463663621
oct154465353
958512437
1028469995
1115085a24
12964b837
135b8a768
143ad1511
15277584a
hex1b26aeb

28469995 has 4 divisors (see below), whose sum is σ = 34164000. Its totient is φ = 22775992.

The previous prime is 28469989. The next prime is 28470007. The reversal of 28469995 is 59996482.

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 28469995 - 213 = 28461803 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2846995 + ... + 2847004.

It is an arithmetic number, because the mean of its divisors is an integer number (8541000).

Almost surely, 228469995 is an apocalyptic number.

28469995 is a deficient number, since it is larger than the sum of its proper divisors (5694005).

28469995 is an equidigital number, since it uses as much as digits as its factorization.

28469995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5694004.

The product of its digits is 1399680, while the sum is 52.

The square root of 28469995 is about 5335.7281602420. The cubic root of 28469995 is about 305.3485042592.

The spelling of 28469995 in words is "twenty-eight million, four hundred sixty-nine thousand, nine hundred ninety-five".

Divisors: 1 5 5693999 28469995