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312892480 = 26517113509
BaseRepresentation
bin10010101001100…
…101110001000000
3210210202120210101
4102221211301000
51120100024410
651014212144
710516353655
oct2251456100
9723676711
10312892480
1115068a82a
1288954054
134ca930a4
142d7abc2c
151c708d3a
hex12a65c40

312892480 has 112 divisors (see below), whose sum is σ = 797448240. Its totient is φ = 116523008.

The previous prime is 312892477. The next prime is 312892499. The reversal of 312892480 is 84298213.

312892480 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 2005056 + 310887424 = 1416^2 + 17632^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 614466 + ... + 614974.

Almost surely, 2312892480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312892480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (398724120).

312892480 is an abundant number, since it is smaller than the sum of its proper divisors (484555760).

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

312892480 is a wasteful number, since it uses less digits than its factorization.

312892480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656 (or 646 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 312892480 is about 17688.7670570902. The cubic root of 312892480 is about 678.8883798638. Note that the first 3 decimals are identical.

The spelling of 312892480 in words is "three hundred twelve million, eight hundred ninety-two thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 17 20 32 34 40 64 68 80 85 113 136 160 170 226 272 320 340 452 509 544 565 680 904 1018 1088 1130 1360 1808 1921 2036 2260 2545 2720 3616 3842 4072 4520 5090 5440 7232 7684 8144 8653 9040 9605 10180 15368 16288 17306 18080 19210 20360 30736 32576 34612 36160 38420 40720 43265 57517 61472 69224 76840 81440 86530 115034 122944 138448 153680 162880 173060 230068 276896 287585 307360 346120 460136 553792 575170 614720 692240 920272 977789 1150340 1384480 1840544 1955578 2300680 2768960 3681088 3911156 4601360 4888945 7822312 9202720 9777890 15644624 18405440 19555780 31289248 39111560 62578496 78223120 156446240 312892480