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86754993 = 3136136467
BaseRepresentation
bin1010010101111…
…00011010110001
320001020121110220
411022330122301
5134202124433
612335243253
72102256003
oct512743261
9201217426
1086754993
1144a75346
1225079529
1314c86c20
14b744373
15793a2b3
hex52bc6b1

86754993 has 16 divisors (see below), whose sum is σ = 126616896. Its totient is φ = 52511040.

The previous prime is 86754991. The next prime is 86755001. The reversal of 86754993 is 39945768.

It is not a de Polignac number, because 86754993 - 21 = 86754991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86754991) 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, 15855 + ... + 20612.

It is an arithmetic number, because the mean of its divisors is an integer number (7913556).

Almost surely, 286754993 is an apocalyptic number.

It is an amenable number.

86754993 is a deficient number, since it is larger than the sum of its proper divisors (39861903).

86754993 is a wasteful number, since it uses less digits than its factorization.

86754993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36544.

The product of its digits is 1632960, while the sum is 51.

The square root of 86754993 is about 9314.2360395257. The cubic root of 86754993 is about 442.6884179562.

The spelling of 86754993 in words is "eighty-six million, seven hundred fifty-four thousand, nine hundred ninety-three".

Divisors: 1 3 13 39 61 183 793 2379 36467 109401 474071 1422213 2224487 6673461 28918331 86754993