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393212485 = 5233419239
BaseRepresentation
bin10111011011111…
…111001001000101
31000101220021010101
4113123333021011
51301130244420
6103003524101
712513152041
oct2733771105
91011807111
10393212485
11191a5a3a6
12ab829631
1363606013
143a319021
15247c260a
hex176ff245

393212485 has 8 divisors (see below), whose sum is σ = 492370560. Its totient is φ = 300892944.

The previous prime is 393212471. The next prime is 393212507. The reversal of 393212485 is 584212393.

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 393212485 - 211 = 393210437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1709505 + ... + 1709734.

It is an arithmetic number, because the mean of its divisors is an integer number (61546320).

Almost surely, 2393212485 is an apocalyptic number.

It is an amenable number.

393212485 is a deficient number, since it is larger than the sum of its proper divisors (99158075).

393212485 is a wasteful number, since it uses less digits than its factorization.

393212485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3419267.

The product of its digits is 51840, while the sum is 37.

The square root of 393212485 is about 19829.5861025892. The cubic root of 393212485 is about 732.6149322466.

It can be divided in two parts, 393 and 212485, that added together give a triangular number (212878 = T652).

The spelling of 393212485 in words is "three hundred ninety-three million, two hundred twelve thousand, four hundred eighty-five".

Divisors: 1 5 23 115 3419239 17096195 78642497 393212485