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312533012 = 221161116443
BaseRepresentation
bin10010101000001…
…110000000010100
3210210002022200202
4102220032000110
51120002024022
651002400032
710513325651
oct2250160024
9723068622
10312533012
11150464750
1288800018
134c99859c
142d716c28
151c687592
hex12a0e014

312533012 has 24 divisors (see below), whose sum is σ = 606440352. Its totient is φ = 139730400.

The previous prime is 312533009. The next prime is 312533047. The reversal of 312533012 is 210335213.

It is a super-3 number, since 3×3125330123 (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55538 + ... + 60905.

It is an arithmetic number, because the mean of its divisors is an integer number (25268348).

Almost surely, 2312533012 is an apocalyptic number.

It is an amenable number.

312533012 is a deficient number, since it is larger than the sum of its proper divisors (293907340).

312533012 is a wasteful number, since it uses less digits than its factorization.

312533012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116519 (or 116517 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 312533012 is about 17678.6032253682. The cubic root of 312533012 is about 678.6282988685.

Adding to 312533012 its reverse (210335213), we get a palindrome (522868225).

The spelling of 312533012 in words is "three hundred twelve million, five hundred thirty-three thousand, twelve".

Divisors: 1 2 4 11 22 44 61 122 244 671 1342 2684 116443 232886 465772 1280873 2561746 5123492 7103023 14206046 28412092 78133253 156266506 312533012