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630045245 = 51743223773
BaseRepresentation
bin100101100011011…
…011101000111101
31121220112121121002
4211203123220331
52242242421440
6142304020045
721420203414
oct4543335075
91556477532
10630045245
112a370a355
12157001625
13a06b834b
145d96847b
153a4a5115
hex258dba3d

630045245 has 32 divisors (see below), whose sum is σ = 823882752. Its totient is φ = 460680192.

The previous prime is 630045137. The next prime is 630045389. The reversal of 630045245 is 542540036.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-630045245 is a prime.

It is a super-2 number, since 2×6300452452 = 793914021494220050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 814679 + ... + 815451.

It is an arithmetic number, because the mean of its divisors is an integer number (25746336).

Almost surely, 2630045245 is an apocalyptic number.

It is an amenable number.

630045245 is a deficient number, since it is larger than the sum of its proper divisors (193837507).

630045245 is a wasteful number, since it uses less digits than its factorization.

630045245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 630045245 is about 25100.7020818144. The cubic root of 630045245 is about 857.2824098640.

The spelling of 630045245 in words is "six hundred thirty million, forty-five thousand, two hundred forty-five".

Divisors: 1 5 17 43 85 215 223 731 773 1115 3655 3791 3865 9589 13141 18955 33239 47945 65705 163013 166195 172379 565063 815065 861895 2825315 2930443 7412297 14652215 37061485 126009049 630045245