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143004001 = 723778877
BaseRepresentation
bin10001000011000…
…01000101100001
3100222002100121111
420201201011201
5243102112001
622105023321
73354341200
oct1041410541
9328070544
10143004001
11737a4028
123ba84b41
132381c76a
1414dc7237
15c84b851
hex8861161

143004001 has 12 divisors (see below), whose sum is σ = 170849748. Its totient is φ = 119260512.

The previous prime is 143003989. The next prime is 143004047. The reversal of 143004001 is 100400341.

It can be written as a sum of positive squares in 2 ways, for example, as 93315600 + 49688401 = 9660^2 + 7049^2 .

It is not a de Polignac number, because 143004001 - 211 = 143001953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143004061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37626 + ... + 41251.

It is an arithmetic number, because the mean of its divisors is an integer number (14237479).

Almost surely, 2143004001 is an apocalyptic number.

It is an amenable number.

143004001 is a deficient number, since it is larger than the sum of its proper divisors (27845747).

143004001 is an equidigital number, since it uses as much as digits as its factorization.

143004001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78928 (or 78921 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 143004001 is about 11958.4280321454. The cubic root of 143004001 is about 522.9370301733.

Adding to 143004001 its reverse (100400341), we get a palindrome (243404342).

The spelling of 143004001 in words is "one hundred forty-three million, four thousand, one".

Divisors: 1 7 37 49 259 1813 78877 552139 2918449 3864973 20429143 143004001