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83958418740 = 22357712815507
BaseRepresentation
bin100111000110001001…
…1111100110100110100
322000201012120120200110
41032030103330310310
52333421323344430
6102323040143020
76031365533010
oct1161423746464
9260635516613
1083958418740
113267437a729
1214331607a70
137bc0258021
1440c6787540
1522b5c7d7b0
hex138c4fcd34

83958418740 has 96 divisors (see below), whose sum is σ = 272451078144. Its totient is φ = 18920200320.

The previous prime is 83958418729. The next prime is 83958418741. The reversal of 83958418740 is 4781485938.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83958418741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1377934 + ... + 1437573.

It is an arithmetic number, because the mean of its divisors is an integer number (2838032064).

Almost surely, 283958418740 is an apocalyptic number.

It is an amenable number.

83958418740 is an abundant number, since it is smaller than the sum of its proper divisors (188492659404).

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

83958418740 is a wasteful number, since it uses less digits than its factorization.

83958418740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2815597 (or 2815595 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 57.

The spelling of 83958418740 in words is "eighty-three billion, nine hundred fifty-eight million, four hundred eighteen thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 71 84 105 140 142 210 213 284 355 420 426 497 710 852 994 1065 1420 1491 1988 2130 2485 2982 4260 4970 5964 7455 9940 14910 29820 2815507 5631014 8446521 11262028 14077535 16893042 19708549 28155070 33786084 39417098 42232605 56310140 59125647 78834196 84465210 98542745 118251294 168930420 197085490 199900997 236502588 295628235 394170980 399801994 591256470 599702991 799603988 999504985 1182512940 1199405982 1399306979 1999009970 2398811964 2798613958 2998514955 3998019940 4197920937 5597227916 5997029910 6996534895 8395841874 11994059820 13993069790 16791683748 20989604685 27986139580 41979209370 83958418740