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312034680 = 23345193499
BaseRepresentation
bin10010100110010…
…100010101111000
3210202011000010000
4102212110111320
51114340102210
650543553000
710506152046
oct2246242570
9722130100
10312034680
11150154301
12885bb760
134c852809
142d627396
151c5d9ac0
hex12994578

312034680 has 160 divisors (see below), whose sum is σ = 1056330000. Its totient is φ = 82612224.

The previous prime is 312034669. The next prime is 312034717. The reversal of 312034680 is 86430213.

It is a happy number.

312034680 is a `hidden beast` number, since 312 + 0 + 346 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 39 ways as a sum of consecutive naturals, for example, 625071 + ... + 625569.

Almost surely, 2312034680 is an apocalyptic number.

312034680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312034680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (528165000).

312034680 is an abundant number, since it is smaller than the sum of its proper divisors (744295320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312034680 is a wasteful number, since it uses less digits than its factorization.

312034680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715 (or 702 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 312034680 is about 17664.5033895663. The cubic root of 312034680 is about 678.2674174181.

Adding to 312034680 its reverse (86430213), we get a palindrome (398464893).

The spelling of 312034680 in words is "three hundred twelve million, thirty-four thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 72 81 90 108 120 135 162 180 193 216 270 324 360 386 405 499 540 579 648 772 810 965 998 1080 1158 1497 1544 1620 1737 1930 1996 2316 2495 2895 2994 3240 3474 3860 3992 4491 4632 4990 5211 5790 5988 6948 7485 7720 8685 8982 9980 10422 11580 11976 13473 13896 14970 15633 17370 17964 19960 20844 22455 23160 26055 26946 29940 31266 34740 35928 40419 41688 44910 52110 53892 59880 62532 67365 69480 78165 80838 89820 96307 104220 107784 125064 134730 156330 161676 179640 192614 202095 208440 269460 288921 312660 323352 385228 404190 481535 538920 577842 625320 770456 808380 866763 963070 1155684 1444605 1616760 1733526 1926140 2311368 2600289 2889210 3467052 3852280 4333815 5200578 5778420 6934104 7800867 8667630 10401156 11556840 13001445 15601734 17335260 20802312 26002890 31203468 34670520 39004335 52005780 62406936 78008670 104011560 156017340 312034680