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630553041 = 32281249329
BaseRepresentation
bin100101100101010…
…111100111010001
31121221111102011100
4211211113213101
52242410144131
6142322535013
721424420026
oct4545274721
91557442140
10630553041
112a3a26918
12157207469
13a0835511
145da5b54d
153a5557e6
hex259579d1

630553041 has 12 divisors (see below), whose sum is σ = 914043780. Its totient is φ = 418871040.

The previous prime is 630553039. The next prime is 630553093. The reversal of 630553041 is 140355036.

It can be written as a sum of positive squares in 2 ways, for example, as 412252416 + 218300625 = 20304^2 + 14775^2 .

It is not a de Polignac number, because 630553041 - 21 = 630553039 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 630552996 and 630553014.

It is not an unprimeable number, because it can be changed into a prime (630553141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122136 + ... + 127193.

It is an arithmetic number, because the mean of its divisors is an integer number (76170315).

Almost surely, 2630553041 is an apocalyptic number.

It is an amenable number.

630553041 is a deficient number, since it is larger than the sum of its proper divisors (283490739).

630553041 is a wasteful number, since it uses less digits than its factorization.

630553041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249616 (or 249613 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 630553041 is about 25110.8152197415. The cubic root of 630553041 is about 857.5126619408.

The spelling of 630553041 in words is "six hundred thirty million, five hundred fifty-three thousand, forty-one".

Divisors: 1 3 9 281 843 2529 249329 747987 2243961 70061449 210184347 630553041