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385429169 = 2931428731
BaseRepresentation
bin10110111110010…
…010111010110001
3222212020211102102
4112332102322301
51242132213134
6102125030145
712360044126
oct2676227261
9885224372
10385429169
11188623704
12a90b5355
1361b0c3c8
143929074d
1523c8637e
hex16f92eb1

385429169 has 8 divisors (see below), whose sum is σ = 411582720. Its totient is φ = 360133200.

The previous prime is 385429159. The next prime is 385429181. The reversal of 385429169 is 961924583.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-385429169 is a prime.

It is a super-2 number, since 2×3854291692 = 297111288632061122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385429129) 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 7 ways as a sum of consecutive naturals, for example, 213467 + ... + 215264.

It is an arithmetic number, because the mean of its divisors is an integer number (51447840).

Almost surely, 2385429169 is an apocalyptic number.

It is an amenable number.

385429169 is a deficient number, since it is larger than the sum of its proper divisors (26153551).

385429169 is a wasteful number, since it uses less digits than its factorization.

385429169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428791.

The product of its digits is 466560, while the sum is 47.

The square root of 385429169 is about 19632.3500630974. The cubic root of 385429169 is about 727.7488472949.

The spelling of 385429169 in words is "three hundred eighty-five million, four hundred twenty-nine thousand, one hundred sixty-nine".

Divisors: 1 29 31 899 428731 12433199 13290661 385429169