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553640748 = 22346136729
BaseRepresentation
bin100000111111111…
…110001100101100
31102120202212022220
4200333332030230
52113213000443
6130534235340
716501603653
oct4077761454
91376685286
10553640748
11264574541
121354b5b50
138a91669b
145375a19a
1533911a83
hex20ffe32c

553640748 has 12 divisors (see below), whose sum is σ = 1291828440. Its totient is φ = 184546912.

The previous prime is 553640743. The next prime is 553640761. The reversal of 553640748 is 847046355.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (553640741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23068353 + ... + 23068376.

It is an arithmetic number, because the mean of its divisors is an integer number (107652370).

Almost surely, 2553640748 is an apocalyptic number.

It is an amenable number.

553640748 is an abundant number, since it is smaller than the sum of its proper divisors (738187692).

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

553640748 is a wasteful number, since it uses less digits than its factorization.

553640748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46136736 (or 46136734 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 42.

The square root of 553640748 is about 23529.5717768089. The cubic root of 553640748 is about 821.1251399778.

The spelling of 553640748 in words is "five hundred fifty-three million, six hundred forty thousand, seven hundred forty-eight".

Divisors: 1 2 3 4 6 12 46136729 92273458 138410187 184546916 276820374 553640748