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385345396 = 221972931669
BaseRepresentation
bin10110111101111…
…110011101110100
3222212002120111201
4112331332131310
51242122023041
6102123142244
712356244652
oct2675763564
9885076451
10385345396
11188576777
12a9074984
1361ab0237
143926bdd2
1523c6b631
hex16f7e774

385345396 has 24 divisors (see below), whose sum is σ = 680498280. Its totient is φ = 190925952.

The previous prime is 385345369. The next prime is 385345397. The reversal of 385345396 is 693543583.

It can be written as a sum of positive squares in 4 ways, for example, as 275095396 + 110250000 = 16586^2 + 10500^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385345397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230050 + ... + 231718.

It is an arithmetic number, because the mean of its divisors is an integer number (28354095).

Almost surely, 2385345396 is an apocalyptic number.

It is an amenable number.

385345396 is a deficient number, since it is larger than the sum of its proper divisors (295152884).

385345396 is a wasteful number, since it uses less digits than its factorization.

385345396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2163 (or 2161 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 46.

The square root of 385345396 is about 19630.2164022713. The cubic root of 385345396 is about 727.6961180893.

The spelling of 385345396 in words is "three hundred eighty-five million, three hundred forty-five thousand, three hundred ninety-six".

Divisors: 1 2 4 197 293 394 586 788 1172 1669 3338 6676 57721 115442 230884 328793 489017 657586 978034 1315172 1956068 96336349 192672698 385345396