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87724916080529 = 7139278910389271
BaseRepresentation
bin10011111100100100001100…
…011101011111111110010001
3102111121102100020022102200112
4103330210030131133332101
542444241112004034104
6510324134201331105
724322626125316350
oct2374441435377621
9374542306272615
1087724916080529
1125a51a23164172
129a09814a96a95
1339c456895a8a0
141793ca1271997
15a21dd683786e
hex4fc90c75ff91

87724916080529 has 16 divisors (see below), whose sum is σ = 107970301474560. Its totient is φ = 69407970102720.

The previous prime is 87724916080523. The next prime is 87724916080531. The reversal of 87724916080529 is 92508061942778.

It is a cyclic number.

It is not a de Polignac number, because 87724916080529 - 28 = 87724916080273 is a prime.

It is a super-2 number, since 2×877249160805292 (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87724916080523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3249164 + ... + 13638434.

It is an arithmetic number, because the mean of its divisors is an integer number (6748143842160).

Almost surely, 287724916080529 is an apocalyptic number.

It is an amenable number.

87724916080529 is a deficient number, since it is larger than the sum of its proper divisors (20245385394031).

87724916080529 is a wasteful number, since it uses less digits than its factorization.

87724916080529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10482080.

The product of its (nonzero) digits is 121927680, while the sum is 68.

The spelling of 87724916080529 in words is "eighty-seven trillion, seven hundred twenty-four billion, nine hundred sixteen million, eighty thousand, five hundred twenty-nine".

Divisors: 1 7 13 91 92789 649523 1206257 8443799 10389271 72724897 135060523 945423661 964010066819 6748070467733 12532130868647 87724916080529