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316445532 = 2231319241443
BaseRepresentation
bin10010110111001…
…001001101011100
3211001110002122220
4102313021031130
51122002224112
651222305340
710561512504
oct2267111534
9731402586
10316445532
11152697237
1289b88250
13507383a0
1430054a04
151cbab98c
hex12dc935c

316445532 has 96 divisors (see below), whose sum is σ = 842392320. Its totient is φ = 91653120.

The previous prime is 316445473. The next prime is 316445543. The reversal of 316445532 is 235544613.

316445532 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

316445532 is strictly pandigital in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 316445493 and 316445502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 714103 + ... + 714545.

It is an arithmetic number, because the mean of its divisors is an integer number (8774920).

Almost surely, 2316445532 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 316445532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (421196160).

316445532 is an abundant number, since it is smaller than the sum of its proper divisors (525946788).

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

316445532 is a wasteful number, since it uses less digits than its factorization.

316445532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723 (or 721 counting only the distinct ones).

The product of its digits is 43200, while the sum is 33.

The square root of 316445532 is about 17788.9159872096. The cubic root of 316445532 is about 681.4484207031.

The spelling of 316445532 in words is "three hundred sixteen million, four hundred forty-five thousand, five hundred thirty-two".

Divisors: 1 2 3 4 6 12 13 19 26 38 39 52 57 76 78 114 156 228 241 247 443 482 494 723 741 886 964 988 1329 1446 1482 1772 2658 2892 2964 3133 4579 5316 5759 6266 8417 9158 9399 11518 12532 13737 16834 17277 18316 18798 23036 25251 27474 33668 34554 37596 50502 54948 59527 69108 101004 106763 109421 119054 178581 213526 218842 238108 320289 328263 357162 427052 437684 640578 656526 714324 1281156 1313052 1387919 2028497 2775838 4056994 4163757 5551676 6085491 8113988 8327514 12170982 16655028 24341964 26370461 52740922 79111383 105481844 158222766 316445532