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478968480 = 25325332617
BaseRepresentation
bin11100100011000…
…111101010100000
31020101021010020100
4130203013222200
51440103442410
6115305542400
714604110364
oct3443075240
91211233210
10478968480
11226402121
121144a4a00
1378300303
144787d2a4
152c0b18c0
hex1c8c7aa0

478968480 has 72 divisors (see below), whose sum is σ = 1634484852. Its totient is φ = 127724544.

The previous prime is 478968463. The next prime is 478968517. The reversal of 478968480 is 84869874.

478968480 is a `hidden beast` number, since 4 + 78 + 96 + 8 + 480 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 444535056 + 34433424 = 21084^2 + 5868^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 164869 + ... + 167748.

Almost surely, 2478968480 is an apocalyptic number.

478968480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

478968480 is an abundant number, since it is smaller than the sum of its proper divisors (1155516372).

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

478968480 is a wasteful number, since it uses less digits than its factorization.

478968480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332638 (or 332627 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 54.

The square root of 478968480 is about 21885.3485236128. The cubic root of 478968480 is about 782.4122559461.

The spelling of 478968480 in words is "four hundred seventy-eight million, nine hundred sixty-eight thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 72 80 90 96 120 144 160 180 240 288 360 480 720 1440 332617 665234 997851 1330468 1663085 1995702 2660936 2993553 3326170 3991404 4989255 5321872 5987106 6652340 7982808 9978510 10643744 11974212 13304680 14967765 15965616 19957020 23948424 26609360 29935530 31931232 39914040 47896848 53218720 59871060 79828080 95793696 119742120 159656160 239484240 478968480