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8897007820 = 225894998319
BaseRepresentation
bin10000100100100110…
…11001000011001100
3211222001021211022011
420102103121003030
5121210113222240
64030501431004
7433322214211
oct102223310314
924861254264
108897007820
113856146728
12188370b464
13aba32c88c
14605885b08
153711356ea
hex2124d90cc

8897007820 has 24 divisors (see below), whose sum is σ = 18893649600. Its totient is φ = 3518815872.

The previous prime is 8897007793. The next prime is 8897007853. The reversal of 8897007820 is 287007988.

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, 2497380 + ... + 2500939.

It is an arithmetic number, because the mean of its divisors is an integer number (787235400).

Almost surely, 28897007820 is an apocalyptic number.

It is an amenable number.

8897007820 is an abundant number, since it is smaller than the sum of its proper divisors (9996641780).

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

8897007820 is a wasteful number, since it uses less digits than its factorization.

8897007820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4998417 (or 4998415 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 49.

The square root of 8897007820 is about 94323.9514651501. The cubic root of 8897007820 is about 2072.1188305481.

The spelling of 8897007820 in words is "eight billion, eight hundred ninety-seven million, seven thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 89 178 356 445 890 1780 4998319 9996638 19993276 24991595 49983190 99966380 444850391 889700782 1779401564 2224251955 4448503910 8897007820