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28832097 = 371372957
BaseRepresentation
bin110110111111…
…1000101100001
32000020211012110
41231333011201
524340111342
62505545533
7500032410
oct155770541
960224173
1028832097
1115302a88
1297a52a9
135c86518
143b87477
1527e7c9c
hex1b7f161

28832097 has 8 divisors (see below), whose sum is σ = 43934656. Its totient is φ = 16475472.

The previous prime is 28832071. The next prime is 28832107. The reversal of 28832097 is 79023882.

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

It is not a de Polignac number, because 28832097 - 27 = 28831969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28832047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 686458 + ... + 686499.

It is an arithmetic number, because the mean of its divisors is an integer number (5491832).

Almost surely, 228832097 is an apocalyptic number.

It is an amenable number.

28832097 is a deficient number, since it is larger than the sum of its proper divisors (15102559).

28832097 is a wasteful number, since it uses less digits than its factorization.

28832097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372967.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 28832097 is about 5369.5527746731. The cubic root of 28832097 is about 306.6376021342.

It can be divided in two parts, 288 and 32097, that added together give a triangular number (32385 = T254).

The spelling of 28832097 in words is "twenty-eight million, eight hundred thirty-two thousand, ninety-seven".

Divisors: 1 3 7 21 1372957 4118871 9610699 28832097