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82590032980 = 22571323490703
BaseRepresentation
bin100110011101010111…
…1111110010001010100
321220011211201101022101
41030322233332101110
52323121022023410
6101535155011444
75652441461110
oct1147257762124
9256154641271
1082590032980
1132031a14204
121400b299b84
137a328c8200
143dd6b44740
152235a80d3a
hex133abfe454

82590032980 has 72 divisors (see below), whose sum is σ = 214636407552. Its totient is φ = 26138376576.

The previous prime is 82590032957. The next prime is 82590032981. The reversal of 82590032980 is 8923009528.

It is a super-2 number, since 2×825900329802 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 82590032980.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82590032981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1721692 + ... + 1769011.

It is an arithmetic number, because the mean of its divisors is an integer number (2981061216).

Almost surely, 282590032980 is an apocalyptic number.

It is an amenable number.

82590032980 is an abundant number, since it is smaller than the sum of its proper divisors (132046374572).

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

82590032980 is a wasteful number, since it uses less digits than its factorization.

82590032980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3490745 (or 3490730 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 46.

The spelling of 82590032980 in words is "eighty-two billion, five hundred ninety million, thirty-two thousand, nine hundred eighty".

Divisors: 1 2 4 5 7 10 13 14 20 26 28 35 52 65 70 91 130 140 169 182 260 338 364 455 676 845 910 1183 1690 1820 2366 3380 4732 5915 11830 23660 3490703 6981406 13962812 17453515 24434921 34907030 45379139 48869842 69814060 90758278 97739684 122174605 181516556 226895695 244349210 317653973 453791390 488698420 589928807 635307946 907582780 1179857614 1270615892 1588269865 2359715228 2949644035 3176539730 4129501649 5899288070 6353079460 8259003298 11798576140 16518006596 20647508245 41295016490 82590032980