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28319962 = 2116719213
BaseRepresentation
bin110110000001…
…0000011011010
31222021210200111
41230002003122
524222214322
62450554534
7462500326
oct154020332
958253614
1028319962
1114a93230
129598a4a
135b37398
143a92986
152746177
hex1b020da

28319962 has 16 divisors (see below), whose sum is σ = 47035872. Its totient is φ = 12679920.

The previous prime is 28319959. The next prime is 28319981. The reversal of 28319962 is 26991382.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8133 + ... + 11080.

It is an arithmetic number, because the mean of its divisors is an integer number (2939742).

Almost surely, 228319962 is an apocalyptic number.

28319962 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28319962 is a deficient number, since it is larger than the sum of its proper divisors (18715910).

28319962 is a wasteful number, since it uses less digits than its factorization.

28319962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19293.

The product of its digits is 46656, while the sum is 40.

The square root of 28319962 is about 5321.6503079402. The cubic root of 28319962 is about 304.8111775810.

The spelling of 28319962 in words is "twenty-eight million, three hundred nineteen thousand, nine hundred sixty-two".

Divisors: 1 2 11 22 67 134 737 1474 19213 38426 211343 422686 1287271 2574542 14159981 28319962