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313122432 = 2737196131
BaseRepresentation
bin10010101010011…
…101111010000000
3210211012021020010
4102222131322000
51120124404212
651023144520
710521332250
oct2252357200
9724167203
10313122432
11150827577
1288a45140
134cb4395c
142d82b960
151c75203c
hex12a9de80

313122432 has 128 divisors (see below), whose sum is σ = 1000742400. Its totient is φ = 84741120.

The previous prime is 313122427. The next prime is 313122443. The reversal of 313122432 is 234221313.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 313122399 and 313122408.

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 15 ways as a sum of consecutive naturals, for example, 48007 + ... + 54137.

It is an arithmetic number, because the mean of its divisors is an integer number (7818300).

Almost surely, 2313122432 is an apocalyptic number.

313122432 is a gapful number since it is divisible by the number (32) 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 313122432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (500371200).

313122432 is an abundant number, since it is smaller than the sum of its proper divisors (687619968).

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

313122432 is a wasteful number, since it uses less digits than its factorization.

313122432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6174 (or 6162 counting only the distinct ones).

The product of its digits is 864, while the sum is 21.

The square root of 313122432 is about 17695.2658075543. The cubic root of 313122432 is about 679.0546494536.

Adding to 313122432 its reverse (234221313), we get a palindrome (547343745).

The spelling of 313122432 in words is "three hundred thirteen million, one hundred twenty-two thousand, four hundred thirty-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 19 21 24 28 32 38 42 48 56 57 64 76 84 96 112 114 128 133 152 168 192 224 228 266 304 336 384 399 448 456 532 608 672 798 896 912 1064 1216 1344 1596 1824 2128 2432 2688 3192 3648 4256 6131 6384 7296 8512 12262 12768 17024 18393 24524 25536 36786 42917 49048 51072 73572 85834 98096 116489 128751 147144 171668 196192 232978 257502 294288 343336 349467 392384 465956 515004 588576 686672 698934 784768 815423 931912 1030008 1177152 1373344 1397868 1630846 1863824 2060016 2354304 2446269 2746688 2795736 3261692 3727648 4120032 4892538 5493376 5591472 6523384 7455296 8240064 9785076 11182944 13046768 14910592 16480128 19570152 22365888 26093536 39140304 44731776 52187072 78280608 104374144 156561216 313122432