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71480507504 = 2472059930983
BaseRepresentation
bin100001010010010010…
…0011111110001110000
320211111121012000100212
41002210210133301300
52132343002220004
652500535203252
75110232201030
oct1024444376160
9224447160325
1071480507504
112835097929a
1211a2a816528
1369820a34b3
1436614c38c0
151cd55a996e
hex10a491fc70

71480507504 has 40 divisors (see below), whose sum is σ = 158291059200. Its totient is φ = 30632027328.

The previous prime is 71480507491. The next prime is 71480507551. The reversal of 71480507504 is 40570508417.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2291597 + ... + 2322579.

It is an arithmetic number, because the mean of its divisors is an integer number (3957276480).

Almost surely, 271480507504 is an apocalyptic number.

It is an amenable number.

71480507504 is an abundant number, since it is smaller than the sum of its proper divisors (86810551696).

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

71480507504 is a wasteful number, since it uses less digits than its factorization.

71480507504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51597 (or 51591 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 41.

The spelling of 71480507504 in words is "seventy-one billion, four hundred eighty million, five hundred seven thousand, five hundred four".

Divisors: 1 2 4 7 8 14 16 28 56 112 20599 30983 41198 61966 82396 123932 144193 164792 216881 247864 288386 329584 433762 495728 576772 867524 1153544 1735048 2307088 3470096 638218817 1276437634 2552875268 4467531719 5105750536 8935063438 10211501072 17870126876 35740253752 71480507504