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385226686 = 21314999439
BaseRepresentation
bin10110111101100…
…001011110111110
3222211212112200001
4112331201132332
51242104223221
6102120424514
712355241605
oct2675413676
9884775601
10385226686
111884a5569
12a901813a
1361a6b1b0
143923aa3c
1523c46391
hex16f617be

385226686 has 16 divisors (see below), whose sum is σ = 626472000. Its totient is φ = 176601888.

The previous prime is 385226669. The next prime is 385226689. The reversal of 385226686 is 686622583.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385226689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45846 + ... + 53593.

It is an arithmetic number, because the mean of its divisors is an integer number (39154500).

Almost surely, 2385226686 is an apocalyptic number.

385226686 is a deficient number, since it is larger than the sum of its proper divisors (241245314).

385226686 is a wasteful number, since it uses less digits than its factorization.

385226686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99603.

The product of its digits is 829440, while the sum is 46.

The square root of 385226686 is about 19627.1925144683. The cubic root of 385226686 is about 727.6213854129.

The spelling of 385226686 in words is "three hundred eighty-five million, two hundred twenty-six thousand, six hundred eighty-six".

Divisors: 1 2 13 26 149 298 1937 3874 99439 198878 1292707 2585414 14816411 29632822 192613343 385226686