Search a number
-
+
144100312031440 = 24513713147838689
BaseRepresentation
bin100000110000111011110111…
…111010010010000011010000
3200220012212002111201102110001
4200300323313322102003100
5122341414414340001230
61230250434112015344
742231622031350312
oct4060736772220320
9626185074642401
10144100312031440
1141a076654aa836
12141b3732b31554
1362537a7869a4b
1427826c6cb37b2
15119d5a6cba0ca
hex830ef7e920d0

144100312031440 has 40 divisors (see below), whose sum is σ = 337478723494920. Its totient is φ = 57219393970176.

The previous prime is 144100312031419. The next prime is 144100312031453. The reversal of 144100312031440 is 44130213001441.

It can be written as a sum of positive squares in 4 ways, for example, as 30301854202944 + 113798457828496 = 5504712^2 + 10667636^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 144100312031399 and 144100312031408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6573908385 + ... + 6573930304.

It is an arithmetic number, because the mean of its divisors is an integer number (8436968087373).

Almost surely, 2144100312031440 is an apocalyptic number.

144100312031440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144100312031440 is an abundant number, since it is smaller than the sum of its proper divisors (193378411463480).

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

144100312031440 is a wasteful number, since it uses less digits than its factorization.

144100312031440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13147838839 (or 13147838833 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 144100312031440 its reverse (44130213001441), we get a palindrome (188230525032881).

The spelling of 144100312031440 in words is "one hundred forty-four trillion, one hundred billion, three hundred twelve million, thirty-one thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 137 274 548 685 1096 1370 2192 2740 5480 10960 13147838689 26295677378 52591354756 65739193445 105182709512 131478386890 210365419024 262956773780 525913547560 1051827095120 1801253900393 3602507800786 7205015601572 9006269501965 14410031203144 18012539003930 28820062406288 36025078007860 72050156015720 144100312031440