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28763079 = 39587693
BaseRepresentation
bin110110110111…
…0001111000111
32000010022112020
41231232033013
524330404304
62504254223
7466324242
oct155561707
960108466
1028763079
1115266144
129771373
135c60c97
143b6a259
1527d25d9
hex1b6e3c7

28763079 has 4 divisors (see below), whose sum is σ = 38350776. Its totient is φ = 19175384.

The previous prime is 28763057. The next prime is 28763101. The reversal of 28763079 is 97036782.

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

It is an interprime number because it is at equal distance from previous prime (28763057) and next prime (28763101).

It is a cyclic number.

It is not a de Polignac number, because 28763079 - 220 = 27714503 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28763079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28763279) 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, 4793844 + ... + 4793849.

It is an arithmetic number, because the mean of its divisors is an integer number (9587694).

Almost surely, 228763079 is an apocalyptic number.

28763079 is a deficient number, since it is larger than the sum of its proper divisors (9587697).

28763079 is an equidigital number, since it uses as much as digits as its factorization.

28763079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9587696.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 28763079 is about 5363.1221317438. The cubic root of 28763079 is about 306.3927312469.

The spelling of 28763079 in words is "twenty-eight million, seven hundred sixty-three thousand, seventy-nine".

Divisors: 1 3 9587693 28763079