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143147330 = 251932087
BaseRepresentation
bin10001000100001…
…00000101000010
3100222100122012222
420202010011002
5243121203310
622112051042
73355506104
oct1042040502
9328318188
10143147330
1173891787
123bb33a82
132386ca81
1415023574
15c879055
hex8884142

143147330 has 32 divisors (see below), whose sum is σ = 272108160. Its totient is φ = 54219312.

The previous prime is 143147299. The next prime is 143147341. The reversal of 143147330 is 33741341.

It is a super-2 number, since 2×1431473302 = 40982316172257800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 143147330.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67547 + ... + 69633.

It is an arithmetic number, because the mean of its divisors is an integer number (8503380).

Almost surely, 2143147330 is an apocalyptic number.

143147330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

143147330 is a deficient number, since it is larger than the sum of its proper divisors (128960830).

143147330 is an equidigital number, since it uses as much as digits as its factorization.

143147330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2151 (or 2113 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 143147330 is about 11964.4193340087. The cubic root of 143147330 is about 523.1116803328. Note that the first 3 decimals are identical.

Adding to 143147330 its reverse (33741341), we get a palindrome (176888671).

The spelling of 143147330 in words is "one hundred forty-three million, one hundred forty-seven thousand, three hundred thirty".

Divisors: 1 2 5 10 19 38 95 190 361 722 1805 2087 3610 4174 6859 10435 13718 20870 34295 39653 68590 79306 198265 396530 753407 1506814 3767035 7534070 14314733 28629466 71573665 143147330