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83989330952 = 2379212972
BaseRepresentation
bin100111000111000100…
…1110111110000001000
322000210100202002021012
41032032021313300020
52334002232042302
6102330102503052
76032222351042
oct1161611676010
9260710662235
1083989330952
113268a87350a
121433ba34a88
137bc678c287
1440ca912a92
1522b8837a52
hex138e277c08

83989330952 has 36 divisors (see below), whose sum is σ = 159621716205. Its totient is φ = 41431118976.

The previous prime is 83989330939. The next prime is 83989330963. The reversal of 83989330952 is 25903398938.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 46649952196 + 37339378756 = 215986^2 + 193234^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=204926.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83989330891 and 83989330900.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 64755968 + ... + 64757264.

Almost surely, 283989330952 is an apocalyptic number.

It is an amenable number.

83989330952 is a deficient number, since it is larger than the sum of its proper divisors (75632385253).

83989330952 is an frugal number, since it uses more digits than its factorization.

83989330952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2758 (or 1378 counting only the distinct ones).

The product of its (nonzero) digits is 12597120, while the sum is 59.

The spelling of 83989330952 in words is "eighty-three billion, nine hundred eighty-nine million, three hundred thirty thousand, nine hundred fifty-two".

Divisors: 1 2 4 8 79 158 316 632 1297 2594 5188 6241 10376 12482 24964 49928 102463 204926 409852 819704 1682209 3364418 6728836 8094577 13457672 16189154 32378308 64756616 132894511 265789022 531578044 1063156088 10498666369 20997332738 41994665476 83989330952