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311141424 = 243112325621
BaseRepresentation
bin10010100010111…
…010010000110000
3210200110121210110
4102202322100300
51114123011144
650512501320
710465441566
oct2242722060
9720417713
10311141424
1114a6a4180
128824a840
134c5cc069
142d473a36
151c4b00b9
hex128ba430

311141424 has 80 divisors (see below), whose sum is σ = 915012864. Its totient is φ = 90182400.

The previous prime is 311141423. The next prime is 311141437. The reversal of 311141424 is 424141113.

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

It is a self number, because there is not a number n which added to its sum of digits gives 311141424.

It is not an unprimeable number, because it can be changed into a prime (311141423) by changing a digit.

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, 667 + ... + 24954.

Almost surely, 2311141424 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 311141424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (457506432).

311141424 is an abundant number, since it is smaller than the sum of its proper divisors (603871440).

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

311141424 is a wasteful number, since it uses less digits than its factorization.

311141424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25666 (or 25660 counting only the distinct ones).

The product of its digits is 384, while the sum is 21.

The square root of 311141424 is about 17639.2013424645. The cubic root of 311141424 is about 677.6195775736.

Adding to 311141424 its reverse (424141113), we get a palindrome (735282537).

The spelling of 311141424 in words is "three hundred eleven million, one hundred forty-one thousand, four hundred twenty-four".

Divisors: 1 2 3 4 6 8 11 12 16 22 23 24 33 44 46 48 66 69 88 92 132 138 176 184 253 264 276 368 506 528 552 759 1012 1104 1518 2024 3036 4048 6072 12144 25621 51242 76863 102484 153726 204968 281831 307452 409936 563662 589283 614904 845493 1127324 1178566 1229808 1690986 1767849 2254648 2357132 3381972 3535698 4509296 4714264 6482113 6763944 7071396 9428528 12964226 13527888 14142792 19446339 25928452 28285584 38892678 51856904 77785356 103713808 155570712 311141424