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311441100401420 = 2251113718235668211
BaseRepresentation
bin100011011010000010000100…
…0001010000110101100001100
31111211201110220202211100121222
41012310010020022012230030
5311310122333200321140
63022214022200142512
7122412606541342553
oct10664041012065414
91454643822740558
10311441100401420
1190264479a18730
122ab1b456467a38
13104a1a011ab052
1456c9b88942d9a
15260146ed0d5b5
hex11b4108286b0c

311441100401420 has 96 divisors (see below), whose sum is σ = 719085517387776. Its totient is φ = 112362967385600.

The previous prime is 311441100401407. The next prime is 311441100401447. The reversal of 311441100401420 is 24104001144113.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 311441100401420.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 52111115 + ... + 57779325.

It is an arithmetic number, because the mean of its divisors is an integer number (7490474139456).

Almost surely, 2311441100401420 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 311441100401420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359542758693888).

311441100401420 is an abundant number, since it is smaller than the sum of its proper divisors (407644416986356).

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

311441100401420 is a wasteful number, since it uses less digits than its factorization.

311441100401420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5670191 (or 5670189 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 311441100401420 its reverse (24104001144113), we get a palindrome (335545101545533).

The spelling of 311441100401420 in words is "three hundred eleven trillion, four hundred forty-one billion, one hundred million, four hundred one thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 137 220 274 548 685 1370 1507 1823 2740 3014 3646 6028 7292 7535 9115 15070 18230 20053 30140 36460 40106 80212 100265 200530 249751 401060 499502 999004 1248755 2497510 2747261 4995020 5494522 5668211 10989044 11336422 13736305 22672844 27472610 28341055 54945220 56682110 62350321 113364220 124700642 249401284 311751605 623503210 776544907 1247006420 1553089814 3106179628 3882724535 7765449070 8541993977 10333148653 15530898140 17083987954 20666297306 34167975908 41332594612 42709969885 51665743265 85419939770 103331486530 113664635183 170839879540 206662973060 227329270366 454658540732 568323175915 1136646351830 1415641365461 2273292703660 2831282730922 5662565461844 7078206827305 14156413654610 15572055020071 28312827309220 31144110040142 62288220080284 77860275100355 155720550200710 311441100401420