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385700369 = 1722688257
BaseRepresentation
bin10110111111010…
…101001000010001
3222212202121102212
4112333111020101
51242214402434
6102134521505
712362253605
oct2677251021
9885677385
10385700369
1118879943a
12a9206295
1361ba5992
1439321505
1523cdb8ce
hex16fd5211

385700369 has 4 divisors (see below), whose sum is σ = 408388644. Its totient is φ = 363012096.

The previous prime is 385700353. The next prime is 385700383. The reversal of 385700369 is 963007583.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 147306769 + 238393600 = 12137^2 + 15440^2 .

It is a cyclic number.

It is not a de Polignac number, because 385700369 - 24 = 385700353 is a prime.

It is a super-2 number, since 2×3857003692 = 297529549293472322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385700309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11344112 + ... + 11344145.

It is an arithmetic number, because the mean of its divisors is an integer number (102097161).

Almost surely, 2385700369 is an apocalyptic number.

It is an amenable number.

385700369 is a deficient number, since it is larger than the sum of its proper divisors (22688275).

385700369 is a wasteful number, since it uses less digits than its factorization.

385700369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22688274.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 385700369 is about 19639.2558158399. The cubic root of 385700369 is about 727.9194962152.

The spelling of 385700369 in words is "three hundred eighty-five million, seven hundred thousand, three hundred sixty-nine".

Divisors: 1 17 22688257 385700369