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631730048 = 274935391
BaseRepresentation
bin100101101001110…
…110111110000000
31122000201012201012
4211221312332000
52243210330143
6142404100052
721440421365
oct4551667600
91560635635
10631730048
112a4660154
12157694628
13a0b58181
145dc8646c
153a6d9418
hex25a76f80

631730048 has 16 divisors (see below), whose sum is σ = 1258524960. Its totient is φ = 315864960.

The previous prime is 631730041. The next prime is 631730063. The reversal of 631730048 is 840037136.

631730048 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (16).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 631729996 and 631730023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631730041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2467568 + ... + 2467823.

It is an arithmetic number, because the mean of its divisors is an integer number (78657810).

Almost surely, 2631730048 is an apocalyptic number.

It is an amenable number.

631730048 is a deficient number, since it is larger than the sum of its proper divisors (626794912).

631730048 is an equidigital number, since it uses as much as digits as its factorization.

631730048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4935405 (or 4935393 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 631730048 is about 25134.2405494974. The cubic root of 631730048 is about 858.0458822496.

The spelling of 631730048 in words is "six hundred thirty-one million, seven hundred thirty thousand, forty-eight".

Divisors: 1 2 4 8 16 32 64 128 4935391 9870782 19741564 39483128 78966256 157932512 315865024 631730048