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141440055440 = 2454549388657
BaseRepresentation
bin1000001110111001111…
…0111111100010010000
3111112002012102021102212
42003232132333202100
54304132123233230
6144550543131252
713135005430445
oct2035636774220
9445065367385
10141440055440
1154a91251102
12234b3ba3b28
13104510265c8
146bba9a99cc
153a2c379895
hex20ee7bf890

141440055440 has 40 divisors (see below), whose sum is σ = 328921265400. Its totient is φ = 56563439616.

The previous prime is 141440055391. The next prime is 141440055443. The reversal of 141440055440 is 44550044141.

It can be written as a sum of positive squares in 4 ways, for example, as 19300989184 + 122139066256 = 138928^2 + 349484^2 .

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 = 141440055397 and 141440055406.

It is not an unprimeable number, because it can be changed into a prime (141440055443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169592 + ... + 558248.

It is an arithmetic number, because the mean of its divisors is an integer number (8223031635).

Almost surely, 2141440055440 is an apocalyptic number.

141440055440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

141440055440 is an abundant number, since it is smaller than the sum of its proper divisors (187481209960).

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

141440055440 is a wasteful number, since it uses less digits than its factorization.

141440055440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393219 (or 393213 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

Adding to 141440055440 its reverse (44550044141), we get a palindrome (185990099581).

The spelling of 141440055440 in words is "one hundred forty-one billion, four hundred forty million, fifty-five thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 4549 9098 18196 22745 36392 45490 72784 90980 181960 363920 388657 777314 1554628 1943285 3109256 3886570 6218512 7773140 15546280 31092560 1768000693 3536001386 7072002772 8840003465 14144005544 17680006930 28288011088 35360013860 70720027720 141440055440