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28992696 = 2332353991
BaseRepresentation
bin110111010011…
…0010010111000
32000112222111120
41232212102320
524410231241
62513225240
7501301545
oct156462270
960488446
1028992696
1115402707
129862220
136011655
143bc9bcc
15282a666
hex1ba64b8

28992696 has 64 divisors (see below), whose sum is σ = 77137920. Its totient is φ = 9060480.

The previous prime is 28992671. The next prime is 28992713. The reversal of 28992696 is 69629982.

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 28761 + ... + 29751.

It is an arithmetic number, because the mean of its divisors is an integer number (1205280).

Almost surely, 228992696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28992696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38568960).

28992696 is an abundant number, since it is smaller than the sum of its proper divisors (48145224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28992696 is a wasteful number, since it uses less digits than its factorization.

28992696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076 (or 1072 counting only the distinct ones).

The product of its digits is 839808, while the sum is 51.

The square root of 28992696 is about 5384.4866050534. The cubic root of 28992696 is about 307.2058870671.

The spelling of 28992696 in words is "twenty-eight million, nine hundred ninety-two thousand, six hundred ninety-six".

Divisors: 1 2 3 4 6 8 12 23 24 46 53 69 92 106 138 159 184 212 276 318 424 552 636 991 1219 1272 1982 2438 2973 3657 3964 4876 5946 7314 7928 9752 11892 14628 22793 23784 29256 45586 52523 68379 91172 105046 136758 157569 182344 210092 273516 315138 420184 547032 630276 1208029 1260552 2416058 3624087 4832116 7248174 9664232 14496348 28992696