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823481152 = 2613989761
BaseRepresentation
bin110001000101010…
…101001101000000
32010101112011202221
4301011111031000
53141302344102
6213414020424
726256321454
oct6105251500
92111464687
10823481152
1139291963a
121ab947714
131017b4970
147b51c664
154c464637
hex31155340

823481152 has 28 divisors (see below), whose sum is σ = 1759796836. Its totient is φ = 380067840.

The previous prime is 823481149. The next prime is 823481177. The reversal of 823481152 is 251184328.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 118897216 + 704583936 = 10904^2 + 26544^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 494049 + ... + 495712.

It is an arithmetic number, because the mean of its divisors is an integer number (62849887).

Almost surely, 2823481152 is an apocalyptic number.

It is an amenable number.

823481152 is an abundant number, since it is smaller than the sum of its proper divisors (936315684).

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

823481152 is a wasteful number, since it uses less digits than its factorization.

823481152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989786 (or 989776 counting only the distinct ones).

The product of its digits is 15360, while the sum is 34.

The square root of 823481152 is about 28696.3613024369. The cubic root of 823481152 is about 937.3128143496.

The spelling of 823481152 in words is "eight hundred twenty-three million, four hundred eighty-one thousand, one hundred fifty-two".

Divisors: 1 2 4 8 13 16 26 32 52 64 104 208 416 832 989761 1979522 3959044 7918088 12866893 15836176 25733786 31672352 51467572 63344704 102935144 205870288 411740576 823481152