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83683863980 = 22517994124841
BaseRepresentation
bin100110111101111110…
…0100110110110101100
322000000001221202100122
41031323330212312230
52332341032121410
6102235511344112
76021523051553
oct1157374466654
9260001852318
1083683863980
11325433a5672
1214275682038
137b783c8ca2
14409c118d9a
15229bae8e55
hex137bf26dac

83683863980 has 48 divisors (see below), whose sum is σ = 176912799840. Its totient is φ = 33249830400.

The previous prime is 83683863971. The next prime is 83683864021. The reversal of 83683863980 is 8936838638.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3356360 + ... + 3381200.

It is an arithmetic number, because the mean of its divisors is an integer number (3685683330).

Almost surely, 283683863980 is an apocalyptic number.

It is an amenable number.

83683863980 is an abundant number, since it is smaller than the sum of its proper divisors (93228935860).

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

83683863980 is a wasteful number, since it uses less digits than its factorization.

83683863980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25970 (or 25968 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 62.

The spelling of 83683863980 in words is "eighty-three billion, six hundred eighty-three million, eight hundred sixty-three thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 179 358 716 895 941 1790 1882 3580 3764 4705 9410 18820 24841 49682 99364 124205 168439 248410 336878 496820 673756 842195 1684390 3368780 4446539 8893078 17786156 22232695 23375381 44465390 46750762 88930780 93501524 116876905 233753810 467507620 4184193199 8368386398 16736772796 20920965995 41841931990 83683863980