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311341030 = 2571113191637
BaseRepresentation
bin10010100011101…
…010111111100110
3210200211202121021
4102203222333212
51114200403110
650521041354
710500232540
oct2243527746
9720752537
10311341030
1114a820140
128832625a
134c66bb80
142d4c6690
151c4ee2da
hex128eafe6

311341030 has 128 divisors (see below), whose sum is σ = 792529920. Its totient is φ = 84810240.

The previous prime is 311341001. The next prime is 311341031. The reversal of 311341030 is 30143113.

It is a super-2 number, since 2×3113410302 = 193866473922921800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 311340995 and 311341013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311341031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 189372 + ... + 191008.

It is an arithmetic number, because the mean of its divisors is an integer number (6191640).

Almost surely, 2311341030 is an apocalyptic number.

311341030 is an abundant number, since it is smaller than the sum of its proper divisors (481188890).

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

311341030 is a wasteful number, since it uses less digits than its factorization.

311341030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 311341030 is about 17644.8584579191. The cubic root of 311341030 is about 677.7644506223.

Adding to 311341030 its reverse (30143113), we get a palindrome (341484143).

The spelling of 311341030 in words is "three hundred eleven million, three hundred forty-one thousand, thirty".

Divisors: 1 2 5 7 10 11 13 14 19 22 26 35 38 55 65 70 77 91 95 110 130 133 143 154 182 190 209 247 266 286 385 418 455 494 665 715 770 910 1001 1045 1235 1330 1430 1463 1637 1729 2002 2090 2470 2717 2926 3274 3458 5005 5434 7315 8185 8645 10010 11459 13585 14630 16370 17290 18007 19019 21281 22918 27170 31103 36014 38038 42562 57295 62206 90035 95095 106405 114590 126049 148967 155515 180070 190190 212810 217721 234091 252098 297934 311030 342133 404339 435442 468182 630245 684266 744835 808678 1088605 1170455 1260490 1489670 1638637 1710665 2021695 2177210 2340910 2394931 2830373 3277274 3421330 4043390 4447729 4789862 5660746 8193185 8895458 11974655 14151865 16386370 22238645 23949310 28303730 31134103 44477290 62268206 155670515 311341030