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385175007 = 347798599
BaseRepresentation
bin10110111101010…
…100110111011111
3222211202220210000
4112331110313133
51242101100012
6102115345343
712354635130
oct2675246737
9884686700
10385175007
1118846a758
12a8bb2253
1361a50809
1439225c87
1523c35ddc
hex16f54ddf

385175007 has 40 divisors (see below), whose sum is σ = 665984000. Its totient is φ = 217288656.

The previous prime is 385175003. The next prime is 385175039. The reversal of 385175007 is 700571583.

It is not a de Polignac number, because 385175007 - 22 = 385175003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385175003) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 40494 + ... + 49092.

It is an arithmetic number, because the mean of its divisors is an integer number (16649600).

Almost surely, 2385175007 is an apocalyptic number.

385175007 is a deficient number, since it is larger than the sum of its proper divisors (280808993).

385175007 is an equidigital number, since it uses as much as digits as its factorization.

385175007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8697 (or 8688 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 36.

The square root of 385175007 is about 19625.8759549733. The cubic root of 385175007 is about 727.5888466260.

The spelling of 385175007 in words is "three hundred eighty-five million, one hundred seventy-five thousand, seven".

Divisors: 1 3 7 9 21 27 63 79 81 189 237 553 567 711 1659 2133 4977 6399 8599 14931 25797 44793 60193 77391 180579 232173 541737 679321 696519 1625211 2037963 4755247 4875633 6113889 14265741 18341667 42797223 55025001 128391669 385175007