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385713213 = 3128571071
BaseRepresentation
bin10110111111011…
…000010000111101
3222212210021001120
4112333120100331
51242220310323
6102135101153
712362336214
oct2677302075
9885707046
10385713213
111887a8056
12a92117b9
1361bab792
143932607b
1523ce05e3
hex16fd843d

385713213 has 4 divisors (see below), whose sum is σ = 514284288. Its totient is φ = 257142140.

The previous prime is 385713203. The next prime is 385713217. The reversal of 385713213 is 312317583.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 312317583 = 3104105861.

It is a cyclic number.

It is not a de Polignac number, because 385713213 - 212 = 385709117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385713217) 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 3 ways as a sum of consecutive naturals, for example, 64285533 + ... + 64285538.

It is an arithmetic number, because the mean of its divisors is an integer number (128571072).

Almost surely, 2385713213 is an apocalyptic number.

It is an amenable number.

385713213 is a deficient number, since it is larger than the sum of its proper divisors (128571075).

385713213 is a wasteful number, since it uses less digits than its factorization.

385713213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128571074.

The product of its digits is 15120, while the sum is 33.

The square root of 385713213 is about 19639.5828112514. The cubic root of 385713213 is about 727.9275761437.

The spelling of 385713213 in words is "three hundred eighty-five million, seven hundred thirteen thousand, two hundred thirteen".

Divisors: 1 3 128571071 385713213