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82640674245350 = 25213421301994059
BaseRepresentation
bin10010110010100101001000…
…000010000100101011100110
3101211121101000200022200022202
4102302211020002010223212
541312441100101322400
6451432333542054502
723256406642631204
oct2262451002045346
9354541020280282
1082640674245350
11243717931a0021
12932839671a432
133715c9c9c8b90
141659b89648074
15984a185524d5
hex4b2948084ae6

82640674245350 has 48 divisors (see below), whose sum is σ = 165928824302640. Its totient is φ = 30441001046400.

The previous prime is 82640674245319. The next prime is 82640674245359. The reversal of 82640674245350 is 5354247604628.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82640674245359) 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, 150723380 + ... + 151270679.

It is an arithmetic number, because the mean of its divisors is an integer number (3456850506305).

Almost surely, 282640674245350 is an apocalyptic number.

82640674245350 is an abundant number, since it is smaller than the sum of its proper divisors (83288150057290).

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

82640674245350 is a wasteful number, since it uses less digits than its factorization.

82640674245350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301994505 (or 301994500 counting only the distinct ones).

The product of its (nonzero) digits is 38707200, while the sum is 56.

The spelling of 82640674245350 in words is "eighty-two trillion, six hundred forty billion, six hundred seventy-four million, two hundred forty-five thousand, three hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 130 325 421 650 842 2105 4210 5473 10525 10946 21050 27365 54730 136825 273650 301994059 603988118 1509970295 3019940590 3925922767 7549851475 7851845534 15099702950 19629613835 39259227670 98148069175 127139498839 196296138350 254278997678 635697494195 1271394988390 1652813484907 3178487470975 3305626969814 6356974941950 8264067424535 16528134849070 41320337122675 82640674245350