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478485852 = 223133538689
BaseRepresentation
bin11100100001010…
…001110101011100
31020100100121012020
4130201101311130
51434443021402
6115251340140
714600030325
oct3441216534
91210317166
10478485852
11226102559
121142b1650
1378191730
144779544c
152c0188bc
hex1c851d5c

478485852 has 48 divisors (see below), whose sum is σ = 1205893920. Its totient is φ = 146792448.

The previous prime is 478485851. The next prime is 478485853. The reversal of 478485852 is 258584874.

It is an interprime number because it is at equal distance from previous prime (478485851) and next prime (478485853).

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 478485795 and 478485804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478485851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50724 + ... + 59412.

It is an arithmetic number, because the mean of its divisors is an integer number (25122790).

Almost surely, 2478485852 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 478485852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (602946960).

478485852 is an abundant number, since it is smaller than the sum of its proper divisors (727408068).

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

478485852 is a wasteful number, since it uses less digits than its factorization.

478485852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9062 (or 9060 counting only the distinct ones).

The product of its digits is 2867200, while the sum is 51.

The square root of 478485852 is about 21874.3194636999. The cubic root of 478485852 is about 782.1493708906.

The spelling of 478485852 in words is "four hundred seventy-eight million, four hundred eighty-five thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 353 706 1059 1412 2118 4236 4589 8689 9178 13767 17378 18356 26067 27534 34756 52134 55068 104268 112957 225914 338871 451828 677742 1355484 3067217 6134434 9201651 12268868 18403302 36806604 39873821 79747642 119621463 159495284 239242926 478485852