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28046308 = 2273139691
BaseRepresentation
bin110101011111…
…1001111100100
31221202220022011
41222333033210
524134440213
62441044004
7460250443
oct152771744
957686264
1028046308
1114916674
129486604
135a6c964
143a20d5a
1526e003d
hex1abf3e4

28046308 has 24 divisors (see below), whose sum is σ = 50183840. Its totient is φ = 13711680.

The previous prime is 28046279. The next prime is 28046327. The reversal of 28046308 is 80364082.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 28046308.

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, 40243 + ... + 40933.

Almost surely, 228046308 is an apocalyptic number.

It is an amenable number.

28046308 is a deficient number, since it is larger than the sum of its proper divisors (22137532).

28046308 is a wasteful number, since it uses less digits than its factorization.

28046308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907 (or 905 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 28046308 is about 5295.8765091343. The cubic root of 28046308 is about 303.8262077975.

The spelling of 28046308 in words is "twenty-eight million, forty-six thousand, three hundred eight".

Divisors: 1 2 4 73 139 146 278 292 556 691 1382 2764 10147 20294 40588 50443 96049 100886 192098 201772 384196 7011577 14023154 28046308