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427205653 = 71134871109
BaseRepresentation
bin11001011101101…
…010010000010101
31002202212021222121
4121131222100111
51333331040103
6110220255541
713405121350
oct3135522025
91082767877
10427205653
111aa167a26
12bb0a15b1
136a678714
1440a47297
15277896bd
hex1976a415

427205653 has 16 divisors (see below), whose sum is σ = 494012160. Its totient is φ = 361863936.

The previous prime is 427205627. The next prime is 427205677. The reversal of 427205653 is 356502724.

It is not a de Polignac number, because 427205653 - 25 = 427205621 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 (427205353) 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, 384663 + ... + 385771.

It is an arithmetic number, because the mean of its divisors is an integer number (30875760).

Almost surely, 2427205653 is an apocalyptic number.

It is an amenable number.

427205653 is a deficient number, since it is larger than the sum of its proper divisors (66806507).

427205653 is a wasteful number, since it uses less digits than its factorization.

427205653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716.

The product of its (nonzero) digits is 50400, while the sum is 34.

The square root of 427205653 is about 20668.9538438693. The cubic root of 427205653 is about 753.1456931878.

The spelling of 427205653 in words is "four hundred twenty-seven million, two hundred five thousand, six hundred fifty-three".

Divisors: 1 7 113 487 791 1109 3409 7763 55031 125317 385217 540083 877219 3780581 61029379 427205653