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311114320 = 245112973167
BaseRepresentation
bin10010100010110…
…011101001010000
3210200102020121121
4102202303221100
51114121124240
650512132024
710465266556
oct2242635120
9720366547
10311114320
1114a685880
1288237014
134c5bc91a
142d467bd6
151c4a704a
hex128b3a50

311114320 has 160 divisors (see below), whose sum is σ = 832446720. Its totient is φ = 107089920.

The previous prime is 311114317. The next prime is 311114327. The reversal of 311114320 is 23411113.

311114320 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 311114294 and 311114303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311114327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1862877 + ... + 1863043.

It is an arithmetic number, because the mean of its divisors is an integer number (5202792).

Almost surely, 2311114320 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 311114320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (416223360).

311114320 is an abundant number, since it is smaller than the sum of its proper divisors (521332400).

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

311114320 is a wasteful number, since it uses less digits than its factorization.

311114320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 311114320 is about 17638.4330369792. The cubic root of 311114320 is about 677.5999008469.

Adding to 311114320 its reverse (23411113), we get a palindrome (334525433).

The spelling of 311114320 in words is "three hundred eleven million, one hundred fourteen thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 11 16 20 22 29 40 44 55 58 73 80 88 110 116 145 146 167 176 220 232 290 292 319 334 365 440 464 580 584 638 668 730 803 835 880 1160 1168 1276 1336 1460 1595 1606 1670 1837 2117 2320 2552 2672 2920 3190 3212 3340 3674 4015 4234 4843 5104 5840 6380 6424 6680 7348 8030 8468 9185 9686 10585 12191 12760 12848 13360 14696 16060 16936 18370 19372 21170 23287 24215 24382 25520 29392 32120 33872 36740 38744 42340 46574 48430 48764 53273 60955 64240 73480 77488 84680 93148 96860 97528 106546 116435 121910 134101 146960 169360 186296 193720 195056 213092 232870 243820 266365 268202 353539 372592 387440 426184 465740 487640 532730 536404 670505 707078 852368 931480 975280 1065460 1072808 1341010 1414156 1767695 1862960 2130920 2145616 2682020 2828312 3535390 3888929 4261840 5364040 5656624 7070780 7777858 10728080 14141560 15555716 19444645 28283120 31111432 38889290 62222864 77778580 155557160 311114320