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28956050 = 2527612
BaseRepresentation
bin110111001110…
…1010110010010
32000111010020022
41232131112102
524403043200
62512343442
7501056654
oct156352622
960433208
1028956050
1115388122
129844b82
135ccaa76
143bba6d4
15281e885
hex1b9d592

28956050 has 18 divisors (see below), whose sum is σ = 53929119. Its totient is φ = 11567200.

The previous prime is 28956047. The next prime is 28956097. The reversal of 28956050 is 5065982.

It can be written as a sum of positive squares in 5 ways, for example, as 237169 + 28718881 = 487^2 + 5359^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=3805.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28956050.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 37670 + ... + 38430.

Almost surely, 228956050 is an apocalyptic number.

28956050 is a deficient number, since it is larger than the sum of its proper divisors (24973069).

28956050 is an frugal number, since it uses more digits than its factorization.

28956050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534 (or 768 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 28956050 is about 5381.0826048296. The cubic root of 28956050 is about 307.0763991266.

The spelling of 28956050 in words is "twenty-eight million, nine hundred fifty-six thousand, fifty".

Divisors: 1 2 5 10 25 50 761 1522 3805 7610 19025 38050 579121 1158242 2895605 5791210 14478025 28956050