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28952086 = 219761897
BaseRepresentation
bin110111001110…
…0011000010110
32000110220210111
41232130120112
524402431321
62512313234
7501042262
oct156343026
960426714
1028952086
1115385149
12984281a
135cc9017
143bb90a2
15281d5e1
hex1b9c616

28952086 has 8 divisors (see below), whose sum is σ = 45713880. Its totient is φ = 13714128.

The previous prime is 28952083. The next prime is 28952087. The reversal of 28952086 is 68025982.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28952083) by changing a digit.

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, 380911 + ... + 380986.

It is an arithmetic number, because the mean of its divisors is an integer number (5714235).

Almost surely, 228952086 is an apocalyptic number.

28952086 is a deficient number, since it is larger than the sum of its proper divisors (16761794).

28952086 is a wasteful number, since it uses less digits than its factorization.

28952086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761918.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 28952086 is about 5380.7142648537. The cubic root of 28952086 is about 307.0623858617.

The spelling of 28952086 in words is "twenty-eight million, nine hundred fifty-two thousand, eighty-six".

Divisors: 1 2 19 38 761897 1523794 14476043 28952086