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385117369 = 7132325543
BaseRepresentation
bin10110111101000…
…110110010111001
3222211122222201021
4112331012302321
51242042223434
6102114222441
712354305110
oct2675066271
9884588637
10385117369
1118843041a
12a8b84a21
1361a30500
143920cc77
1523c23cb4
hex16f46cb9

385117369 has 12 divisors (see below), whose sum is σ = 476596416. Its totient is φ = 304707312.

The previous prime is 385117363. The next prime is 385117379. The reversal of 385117369 is 963711583.

It is not a de Polignac number, because 385117369 - 27 = 385117241 is a prime.

It is a super-2 number, since 2×3851173692 = 296630775810964322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385117363) 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 11 ways as a sum of consecutive naturals, for example, 161589 + ... + 163954.

It is an arithmetic number, because the mean of its divisors is an integer number (39716368).

Almost surely, 2385117369 is an apocalyptic number.

It is an amenable number.

385117369 is a deficient number, since it is larger than the sum of its proper divisors (91479047).

385117369 is a wasteful number, since it uses less digits than its factorization.

385117369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325576 (or 325563 counting only the distinct ones).

The product of its digits is 136080, while the sum is 43.

The square root of 385117369 is about 19624.4074815012. The cubic root of 385117369 is about 727.5525524245.

The spelling of 385117369 in words is "three hundred eighty-five million, one hundred seventeen thousand, three hundred sixty-nine".

Divisors: 1 7 13 91 169 1183 325543 2278801 4232059 29624413 55016767 385117369