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28936770 = 235964559
BaseRepresentation
bin110111001100…
…0101001000010
32000110010210020
41232120221002
524401434040
62512114310
7500646522
oct156305102
960403706
1028936770
1115374695
129835996
135cc2065
143bb3682
152818cd0
hex1b98a42

28936770 has 16 divisors (see below), whose sum is σ = 69448320. Its totient is φ = 7716464.

The previous prime is 28936763. The next prime is 28936777. The reversal of 28936770 is 7763982.

It is an interprime number because it is at equal distance from previous prime (28936763) and next prime (28936777).

It is not an unprimeable number, because it can be changed into a prime (28936777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482250 + ... + 482309.

It is an arithmetic number, because the mean of its divisors is an integer number (4340520).

Almost surely, 228936770 is an apocalyptic number.

28936770 is an abundant number, since it is smaller than the sum of its proper divisors (40511550).

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

28936770 is a wasteful number, since it uses less digits than its factorization.

28936770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964569.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 28936770 is about 5379.2908454554. The cubic root of 28936770 is about 307.0082297518.

The spelling of 28936770 in words is "twenty-eight million, nine hundred thirty-six thousand, seven hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 964559 1929118 2893677 4822795 5787354 9645590 14468385 28936770