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143080340 = 22513550309
BaseRepresentation
bin10001000011100…
…11101110010100
3100222020020022212
420201303232110
5243112032330
622110412552
73355106564
oct1041635624
9328206285
10143080340
1173846417
123bb01158
1323848430
1415006da4
15c864295
hex8873b94

143080340 has 24 divisors (see below), whose sum is σ = 323582280. Its totient is φ = 52829568.

The previous prime is 143080339. The next prime is 143080349. The reversal of 143080340 is 43080341.

It can be written as a sum of positive squares in 4 ways, for example, as 3556996 + 139523344 = 1886^2 + 11812^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143080349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274895 + ... + 275414.

It is an arithmetic number, because the mean of its divisors is an integer number (13482595).

Almost surely, 2143080340 is an apocalyptic number.

143080340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143080340 is an abundant number, since it is smaller than the sum of its proper divisors (180501940).

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

143080340 is a wasteful number, since it uses less digits than its factorization.

143080340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550331 (or 550329 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 143080340 is about 11961.6194555754. The cubic root of 143080340 is about 523.0300657720.

Subtracting from 143080340 its reverse (43080341), we obtain a palindrome (99999999).

The spelling of 143080340 in words is "one hundred forty-three million, eighty thousand, three hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 550309 1100618 2201236 2751545 5503090 7154017 11006180 14308034 28616068 35770085 71540170 143080340