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8499980 = 2251572707
BaseRepresentation
bin100000011011…
…001100001100
3120222211210002
4200123030030
54133444410
6502103432
7132151166
oct40331414
916884702
108499980
114886185
122a1ab78
1319b7b98
1411b3936
15b2d7a5
hex81b30c

8499980 has 24 divisors (see below), whose sum is σ = 17970288. Its totient is φ = 3377088.

The previous prime is 8499979. The next prime is 8500007. The reversal of 8499980 is 899948.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1787 + ... + 4493.

It is an arithmetic number, because the mean of its divisors is an integer number (748762).

Almost surely, 28499980 is an apocalyptic number.

It is an amenable number.

8499980 is an abundant number, since it is smaller than the sum of its proper divisors (9470308).

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

8499980 is a wasteful number, since it uses less digits than its factorization.

8499980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2873 (or 2871 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 47.

The square root of 8499980 is about 2915.4725174489. The cubic root of 8499980 is about 204.0825950308.

The spelling of 8499980 in words is "eight million, four hundred ninety-nine thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 157 314 628 785 1570 2707 3140 5414 10828 13535 27070 54140 424999 849998 1699996 2124995 4249990 8499980