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475384749 = 37127178247
BaseRepresentation
bin11100010101011…
…100101110101101
31020010112001021120
4130111130232231
51433144302444
6115101051153
714531463240
oct3425345655
91203461246
10475384749
11224384664
12113256ab9
1377647068
14471c9257
152bb04b19
hex1c55cbad

475384749 has 16 divisors (see below), whose sum is σ = 730103808. Its totient is φ = 269507952.

The previous prime is 475384729. The next prime is 475384751. The reversal of 475384749 is 947483574.

It is not a de Polignac number, because 475384749 - 221 = 473287597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475384729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86457 + ... + 91790.

It is an arithmetic number, because the mean of its divisors is an integer number (45631488).

Almost surely, 2475384749 is an apocalyptic number.

It is an amenable number.

475384749 is a deficient number, since it is larger than the sum of its proper divisors (254719059).

475384749 is a wasteful number, since it uses less digits than its factorization.

475384749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178384.

The product of its digits is 3386880, while the sum is 51.

The square root of 475384749 is about 21803.3196784343. The cubic root of 475384749 is about 780.4559842037.

The spelling of 475384749 in words is "four hundred seventy-five million, three hundred eighty-four thousand, seven hundred forty-nine".

Divisors: 1 3 7 21 127 381 889 2667 178247 534741 1247729 3743187 22637369 67912107 158461583 475384749