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85480087 = 7112432347
BaseRepresentation
bin1010001100001…
…01001010010111
312221211211122011
411012011022113
5133340330322
612252045051
72055366040
oct506051227
9187754564
1085480087
1144284500
1224763787
131492b844
14b4d18c7
157787677
hex5185297

85480087 has 24 divisors (see below), whose sum is σ = 109923968. Its totient is φ = 65031120.

The previous prime is 85480079. The next prime is 85480091. The reversal of 85480087 is 78008458.

It is not a de Polignac number, because 85480087 - 23 = 85480079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85480067) 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, 35248 + ... + 37594.

Almost surely, 285480087 is an apocalyptic number.

85480087 is a deficient number, since it is larger than the sum of its proper divisors (24443881).

85480087 is a wasteful number, since it uses less digits than its factorization.

85480087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2419 (or 2408 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 40.

The square root of 85480087 is about 9245.5441700313. The cubic root of 85480087 is about 440.5092021511.

The spelling of 85480087 in words is "eighty-five million, four hundred eighty thousand, eighty-seven".

Divisors: 1 7 11 43 77 121 301 473 847 2347 3311 5203 16429 25817 36421 100921 180719 283987 706447 1110131 1987909 7770917 12211441 85480087