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28030076 = 22173113297
BaseRepresentation
bin110101011101…
…1010001111100
31221202002000222
41222323101330
524133430301
62440440512
7460152224
oct152732174
957662028
1028030076
1114905458
129479138
135a65459
143a19084
1526da31b
hex1abb47c

28030076 has 24 divisors (see below), whose sum is σ = 53617536. Its totient is φ = 12764160.

The previous prime is 28030061. The next prime is 28030099. The reversal of 28030076 is 67003082.

28030076 = T25 + T26 + ... + T551.

It is a congruent 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, 4541 + ... + 8756.

It is an arithmetic number, because the mean of its divisors is an integer number (2234064).

Almost surely, 228030076 is an apocalyptic number.

It is an amenable number.

28030076 is a deficient number, since it is larger than the sum of its proper divisors (25587460).

28030076 is a wasteful number, since it uses less digits than its factorization.

28030076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13349 (or 13347 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 28030076 is about 5294.3437742557. The cubic root of 28030076 is about 303.7675826274.

The spelling of 28030076 in words is "twenty-eight million, thirty thousand, seventy-six".

Divisors: 1 2 4 17 31 34 62 68 124 527 1054 2108 13297 26594 53188 226049 412207 452098 824414 904196 1648828 7007519 14015038 28030076