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475488 = 253213127
BaseRepresentation
bin1110100000101100000
3220011020200
41310011200
5110203423
614105200
74020156
oct1640540
9804220
10475488
112a5272
121ab200
13138570
14c53d6
1595d43
hex74160

475488 has 72 divisors (see below), whose sum is σ = 1467648. Its totient is φ = 145152.

The previous prime is 475483. The next prime is 475511. The reversal of 475488 is 884574.

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

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 (475483) by changing a digit.

475488 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3681 + ... + 3807.

It is an arithmetic number, because the mean of its divisors is an integer number (20384).

2475488 is an apocalyptic number.

475488 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 475488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (733824).

475488 is an abundant number, since it is smaller than the sum of its proper divisors (992160).

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

475488 is a wasteful number, since it uses less digits than its factorization.

475488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156 (or 145 counting only the distinct ones).

The product of its digits is 35840, while the sum is 36.

The square root of 475488 is about 689.5563791308. The cubic root of 475488 is about 78.0512483722.

The spelling of 475488 in words is "four hundred seventy-five thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 13 16 18 24 26 32 36 39 48 52 72 78 96 104 117 127 144 156 208 234 254 288 312 381 416 468 508 624 762 936 1016 1143 1248 1524 1651 1872 2032 2286 3048 3302 3744 4064 4572 4953 6096 6604 9144 9906 12192 13208 14859 18288 19812 26416 29718 36576 39624 52832 59436 79248 118872 158496 237744 475488