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28952885372 = 2217234200941
BaseRepresentation
bin11010111101101110…
…011111100001111100
32202201202221222010212
4122331232133201330
5433243414312442
621144544451552
72043323315345
oct327556374174
982652858125
1028952885372
1111308170344
125740319bb8
13296546cc48
1415893550cc
15b46c3ca82
hex6bdb9f87c

28952885372 has 12 divisors (see below), whose sum is σ = 50696968056. Its totient is φ = 14468037360.

The previous prime is 28952885371. The next prime is 28952885491. The reversal of 28952885372 is 27358825982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28952885371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2093579 + ... + 2107362.

It is an arithmetic number, because the mean of its divisors is an integer number (4224747338).

Almost surely, 228952885372 is an apocalyptic number.

It is an amenable number.

28952885372 is a deficient number, since it is larger than the sum of its proper divisors (21744082684).

28952885372 is a wasteful number, since it uses less digits than its factorization.

28952885372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4202668 (or 4202666 counting only the distinct ones).

The product of its digits is 19353600, while the sum is 59.

The spelling of 28952885372 in words is "twenty-eight billion, nine hundred fifty-two million, eight hundred eighty-five thousand, three hundred seventy-two".

Divisors: 1 2 4 1723 3446 6892 4200941 8401882 16803764 7238221343 14476442686 28952885372