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479785216 = 28374
BaseRepresentation
bin11100100110001…
…111000100000000
31020102210121120211
4130212033010000
51440311111331
6115335243504
714614051501
oct3446170400
91212717524
10479785216
1122690a809
12114819594
1378527ca1
1447a12ba8
152c1c38b1
hex1c98f100

479785216 has 45 divisors (see below), whose sum is σ = 984298931. Its totient is φ = 233409024.

The previous prime is 479785213. The next prime is 479785247. The reversal of 479785216 is 612587974.

The square root of 479785216 is 21904.

It is a perfect power (a square, a biquadrate), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 299151616 + 180633600 = 17296^2 + 13440^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 479785216.

It is not an unprimeable number, because it can be changed into a prime (479785211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 4 ways as a sum of consecutive naturals, for example, 12967150 + ... + 12967186.

Almost surely, 2479785216 is an apocalyptic number.

479785216 is the 21904-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 479785216

479785216 is an abundant number, since it is smaller than the sum of its proper divisors (504513715).

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

479785216 is an frugal number, since it uses more digits than its factorization.

479785216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 39 counting only the distinct ones).

The product of its digits is 846720, while the sum is 49.

The cubic root of 479785216 is about 782.8567259587.

Multiplying 479785216 by its sum of digits (49), we get a square (23509475584 = 1533282).

The spelling of 479785216 in words is "four hundred seventy-nine million, seven hundred eighty-five thousand, two hundred sixteen".

Divisors: 1 2 4 8 16 32 37 64 74 128 148 256 296 592 1184 1369 2368 2738 4736 5476 9472 10952 21904 43808 50653 87616 101306 175232 202612 350464 405224 810448 1620896 1874161 3241792 3748322 6483584 7496644 12967168 14993288 29986576 59973152 119946304 239892608 479785216