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143430530 = 25172336683
BaseRepresentation
bin10001000110010…
…01001110000010
3100222220000200212
420203021032002
5243204234110
622122114122
73361065545
oct1043111602
9328800625
10143430530
1173a65531
124004b942
132393b949
141509885c
15c8d2e05
hex88c9382

143430530 has 32 divisors (see below), whose sum is σ = 285254784. Its totient is φ = 51648256.

The previous prime is 143430527. The next prime is 143430541. The reversal of 143430530 is 35034341.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 143430496 and 143430505.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14432 + ... + 22251.

It is an arithmetic number, because the mean of its divisors is an integer number (8914212).

Almost surely, 2143430530 is an apocalyptic number.

143430530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

143430530 is a deficient number, since it is larger than the sum of its proper divisors (141824254).

143430530 is a wasteful number, since it uses less digits than its factorization.

143430530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36730.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 143430530 is about 11976.2485779145. The cubic root of 143430530 is about 523.4564245419.

Adding to 143430530 its reverse (35034341), we get a palindrome (178464871).

The spelling of 143430530 in words is "one hundred forty-three million, four hundred thirty thousand, five hundred thirty".

Divisors: 1 2 5 10 17 23 34 46 85 115 170 230 391 782 1955 3910 36683 73366 183415 366830 623611 843709 1247222 1687418 3118055 4218545 6236110 8437090 14343053 28686106 71715265 143430530