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380212312 = 23147132309
BaseRepresentation
bin10110101010011…
…001010001011000
3222111102210020111
4112222121101120
51234313243222
6101421134104
712264515464
oct2652312130
9874383214
10380212312
11185690157
12a73ba334
1360a039cc
14386d34a4
15235a5777
hex16a99458

380212312 has 16 divisors (see below), whose sum is σ = 713404800. Its totient is φ = 189971040.

The previous prime is 380212309. The next prime is 380212331. The reversal of 380212312 is 213212083.

It is a super-2 number, since 2×3802123122 = 289122804392770688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4387 + ... + 27922.

It is an arithmetic number, because the mean of its divisors is an integer number (44587800).

Almost surely, 2380212312 is an apocalyptic number.

It is an amenable number.

380212312 is a deficient number, since it is larger than the sum of its proper divisors (333192488).

380212312 is a wasteful number, since it uses less digits than its factorization.

380212312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33786 (or 33782 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 380212312 is about 19499.0336170796. The cubic root of 380212312 is about 724.4505147582.

Adding to 380212312 its reverse (213212083), we get a palindrome (593424395).

The spelling of 380212312 in words is "three hundred eighty million, two hundred twelve thousand, three hundred twelve".

Divisors: 1 2 4 8 1471 2942 5884 11768 32309 64618 129236 258472 47526539 95053078 190106156 380212312