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28469159 is a prime number
BaseRepresentation
bin110110010011…
…0011110100111
31222120101100022
41230212132213
524242003114
62454105355
7463661315
oct154463647
958511308
1028469159
1115085334
12964b25b
135b8a274
143ad10b5
15277548e
hex1b267a7

28469159 has 2 divisors, whose sum is σ = 28469160. Its totient is φ = 28469158.

The previous prime is 28469153. The next prime is 28469167. The reversal of 28469159 is 95196482.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28469159 - 216 = 28403623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28469153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14234579 + 14234580.

It is an arithmetic number, because the mean of its divisors is an integer number (14234580).

Almost surely, 228469159 is an apocalyptic number.

28469159 is a deficient number, since it is larger than the sum of its proper divisors (1).

28469159 is an equidigital number, since it uses as much as digits as its factorization.

28469159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 44.

The square root of 28469159 is about 5335.6498198439. The cubic root of 28469159 is about 305.3455154536.

The spelling of 28469159 in words is "twenty-eight million, four hundred sixty-nine thousand, one hundred fifty-nine".