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87503075513 = 719657917861
BaseRepresentation
bin101000101111110010…
…1101111100010111001
322100212020110210122122
41101133211233202321
52413201241404023
6104110502331025
76215256604220
oct1213745574271
9270766423578
1087503075513
1134123228837
1214b60729a75
13833672b979
14434144bcb7
15242205c2c8
hex145f96f8b9

87503075513 has 8 divisors (see below), whose sum is σ = 105266857920. Its totient is φ = 71055128880.

The previous prime is 87503075507. The next prime is 87503075521. The reversal of 87503075513 is 31557030578.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87503075513 - 24 = 87503075497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87503075503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328958798 + ... + 328959063.

It is an arithmetic number, because the mean of its divisors is an integer number (13158357240).

Almost surely, 287503075513 is an apocalyptic number.

It is an amenable number.

87503075513 is a deficient number, since it is larger than the sum of its proper divisors (17763782407).

87503075513 is a wasteful number, since it uses less digits than its factorization.

87503075513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657917887.

The product of its (nonzero) digits is 441000, while the sum is 44.

The spelling of 87503075513 in words is "eighty-seven billion, five hundred three million, seventy-five thousand, five hundred thirteen".

Divisors: 1 7 19 133 657917861 4605425027 12500439359 87503075513