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28225853430 = 2351317182151
BaseRepresentation
bin11010010010011001…
…000101011111110110
32200212002220220210220
4122102121011133312
5430301304302210
620544453555210
72016314536605
oct322231053766
980762826726
1028225853430
1110a748384a5
125578945b06
13287a957828
14151a981a3c
15b02ecac70
hex6926457f6

28225853430 has 32 divisors (see below), whose sum is σ = 68259172608. Its totient is φ = 7469436000.

The previous prime is 28225853419. The next prime is 28225853441. The reversal of 28225853430 is 3435852282.

It is an interprime number because it is at equal distance from previous prime (28225853419) and next prime (28225853441).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3587146 + ... + 3595005.

It is an arithmetic number, because the mean of its divisors is an integer number (2133099144).

Almost surely, 228225853430 is an apocalyptic number.

28225853430 is an abundant number, since it is smaller than the sum of its proper divisors (40033319178).

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

28225853430 is a wasteful number, since it uses less digits than its factorization.

28225853430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7182292.

The product of its (nonzero) digits is 460800, while the sum is 42.

The spelling of 28225853430 in words is "twenty-eight billion, two hundred twenty-five million, eight hundred fifty-three thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 131 262 393 655 786 1310 1965 3930 7182151 14364302 21546453 35910755 43092906 71821510 107732265 215464530 940861781 1881723562 2822585343 4704308905 5645170686 9408617810 14112926715 28225853430