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476215380 = 223252991229
BaseRepresentation
bin11100011000100…
…111100001010100
31020012002020200200
4130120213201110
51433402343010
6115130540500
714541523014
oct3430474124
91205066620
10476215380
112248a1733
12113597730
1377878164
1447363c44
152bc1acc0
hex1c627854

476215380 has 72 divisors (see below), whose sum is σ = 1494347400. Its totient is φ = 122610432.

The previous prime is 476215357. The next prime is 476215381. The reversal of 476215380 is 83512674.

It can be written as a sum of positive squares in 4 ways, for example, as 202379076 + 273836304 = 14226^2 + 16548^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (476215381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40395 + ... + 50834.

It is an arithmetic number, because the mean of its divisors is an integer number (20754825).

Almost surely, 2476215380 is an apocalyptic number.

It is an amenable number.

476215380 is an abundant number, since it is smaller than the sum of its proper divisors (1018132020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

476215380 is a wasteful number, since it uses less digits than its factorization.

476215380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91273 (or 91268 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 476215380 is about 21822.3596341001. The cubic root of 476215380 is about 780.9102784930.

The spelling of 476215380 in words is "four hundred seventy-six million, two hundred fifteen thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 29 30 36 45 58 60 87 90 116 145 174 180 261 290 348 435 522 580 870 1044 1305 1740 2610 5220 91229 182458 273687 364916 456145 547374 821061 912290 1094748 1368435 1642122 1824580 2645641 2736870 3284244 4105305 5291282 5473740 7936923 8210610 10582564 13228205 15873846 16421220 23810769 26456410 31747692 39684615 47621538 52912820 79369230 95243076 119053845 158738460 238107690 476215380