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64283108980 = 22559191285221
BaseRepresentation
bin111011110111100100…
…100110011001110100
320010221000000021201011
4323313210212121310
52023122433441410
645310430042004
74433665260616
oct736744463164
9203830007634
1064283108980
1125298159252
1210560349304
1360a5c143bc
14317b660db6
151a1379c18a
hexef7926674

64283108980 has 48 divisors (see below), whose sum is σ = 138001812480. Its totient is φ = 25144995200.

The previous prime is 64283108959. The next prime is 64283109017. The reversal of 64283108980 is 8980138246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82770 + ... + 367990.

It is an arithmetic number, because the mean of its divisors is an integer number (2875037760).

Almost surely, 264283108980 is an apocalyptic number.

It is an amenable number.

64283108980 is an abundant number, since it is smaller than the sum of its proper divisors (73718703500).

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

64283108980 is a wasteful number, since it uses less digits than its factorization.

64283108980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285480 (or 285478 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 49.

The spelling of 64283108980 in words is "sixty-four billion, two hundred eighty-three million, one hundred eight thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 59 118 191 236 295 382 590 764 955 1180 1910 3820 11269 22538 45076 56345 112690 225380 285221 570442 1140884 1426105 2852210 5704420 16828039 33656078 54477211 67312156 84140195 108954422 168280390 217908844 272386055 336560780 544772110 1089544220 3214155449 6428310898 12856621796 16070777245 32141554490 64283108980