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9019828972 = 2271129285159
BaseRepresentation
bin10000110011001111…
…11010101011101100
3212021121101210020201
420121213322223230
5121433034011342
64051010123244
7436343165320
oct103147725354
925247353221
109019828972
113909505010
1218b8880524
13b0990390b
14617cd7980
1537bce6db7
hex2199faaec

9019828972 has 24 divisors (see below), whose sum is σ = 19679627520. Its totient is φ = 3514218960.

The previous prime is 9019828949. The next prime is 9019828981. The reversal of 9019828972 is 2798289109.

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 7 ways as a sum of consecutive naturals, for example, 14642272 + ... + 14642887.

It is an arithmetic number, because the mean of its divisors is an integer number (819984480).

Almost surely, 29019828972 is an apocalyptic number.

It is an amenable number.

9019828972 is an abundant number, since it is smaller than the sum of its proper divisors (10659798548).

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

9019828972 is a wasteful number, since it uses less digits than its factorization.

9019828972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29285181 (or 29285179 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 55.

The square root of 9019828972 is about 94972.7801635816. The cubic root of 9019828972 is about 2081.6103293348.

The spelling of 9019828972 in words is "nine billion, nineteen million, eight hundred twenty-eight thousand, nine hundred seventy-two".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 29285159 58570318 117140636 204996113 322136749 409992226 644273498 819984452 1288546996 2254957243 4509914486 9019828972