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85249003879 = 1317385742099
BaseRepresentation
bin100111101100100111…
…1001001000101100111
322011001011001002200001
41033121033021011213
52344042221111004
6103055102002131
76105356401624
oct1173117110547
9264034032601
1085249003879
1133176927416
1214631876347
138067747880
1441a9d3734b
15233e20e1a4
hex13d93c9167

85249003879 has 8 divisors (see below), whose sum is σ = 97207009200. Its totient is φ = 74062482816.

The previous prime is 85249003823. The next prime is 85249003891. The reversal of 85249003879 is 97830094258.

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 85249003879 - 225 = 85215449447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85249003079) 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, 192870829 + ... + 192871270.

It is an arithmetic number, because the mean of its divisors is an integer number (12150876150).

Almost surely, 285249003879 is an apocalyptic number.

85249003879 is a deficient number, since it is larger than the sum of its proper divisors (11958005321).

85249003879 is a wasteful number, since it uses less digits than its factorization.

85249003879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385742129.

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 85249003879 in words is "eighty-five billion, two hundred forty-nine million, three thousand, eight hundred seventy-nine".

Divisors: 1 13 17 221 385742099 5014647287 6557615683 85249003879