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71495808650 = 25271094674013
BaseRepresentation
bin100001010010101111…
…0110111011010001010
320211112122222101120222
41002211132313122022
52132410411334100
652502243150042
75110506226550
oct1024536673212
9224478871528
1071495808650
112835957a272
1211a33975322
1369852ccc26
143663547bd0
151cd6acd485
hex10a57b768a

71495808650 has 96 divisors (see below), whose sum is σ = 153740695680. Its totient is φ = 24229912320.

The previous prime is 71495808611. The next prime is 71495808673. The reversal of 71495808650 is 5680859417.

It is a super-2 number, since 2×714958086502 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71495808592 and 71495808601.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 17814044 + ... + 17818056.

It is an arithmetic number, because the mean of its divisors is an integer number (1601465580).

Almost surely, 271495808650 is an apocalyptic number.

71495808650 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

71495808650 is an abundant number, since it is smaller than the sum of its proper divisors (82244887030).

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

71495808650 is a wasteful number, since it uses less digits than its factorization.

71495808650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4608 (or 4603 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 53.

The spelling of 71495808650 in words is "seventy-one billion, four hundred ninety-five million, eight hundred eight thousand, six hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 50 70 109 175 218 350 467 545 763 934 1090 1526 2335 2725 3269 3815 4013 4670 5450 6538 7630 8026 11675 16345 19075 20065 23350 28091 32690 38150 40130 50903 56182 81725 100325 101806 140455 163450 200650 254515 280910 356321 437417 509030 702275 712642 874834 1272575 1404550 1781605 1874071 2187085 2545150 3061919 3563210 3748142 4374170 6123838 8908025 9370355 10935425 13118497 15309595 17816050 18740710 21870850 26236994 30619190 46851775 65592485 76547975 93703550 131184970 153095950 204273739 327962425 408547478 655924850 1021368695 1429916173 2042737390 2859832346 5106843475 7149580865 10213686950 14299161730 35747904325 71495808650