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9028260820 = 2253114561711
BaseRepresentation
bin10000110100010000…
…00101001111010100
3212022012021011120101
420122020011033110
5121442213321240
64051510543444
7436504644055
oct103210051724
925265234511
109028260820
113913243a87
1218bb667b84
13b0b596787
1461909072c
1537c91039a
hex21a2053d4

9028260820 has 24 divisors (see below), whose sum is σ = 19570940928. Its totient is φ = 3494810400.

The previous prime is 9028260811. The next prime is 9028260847. The reversal of 9028260820 is 280628209.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 9028260820.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7280236 + ... + 7281475.

It is an arithmetic number, because the mean of its divisors is an integer number (815455872).

Almost surely, 29028260820 is an apocalyptic number.

It is an amenable number.

9028260820 is an abundant number, since it is smaller than the sum of its proper divisors (10542680108).

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

9028260820 is a wasteful number, since it uses less digits than its factorization.

9028260820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14561751 (or 14561749 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 9028260820 is about 95017.1606605880. The cubic root of 9028260820 is about 2082.2587657063.

The spelling of 9028260820 in words is "nine billion, twenty-eight million, two hundred sixty thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 14561711 29123422 58246844 72808555 145617110 291234220 451413041 902826082 1805652164 2257065205 4514130410 9028260820