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143143002 = 2327952389
BaseRepresentation
bin10001000100000…
…11000001011010
3100222100102021200
420202003001122
5243121034002
622112015030
73355460352
oct1042030132
9328312250
10143143002
1173889502
123bb31476
132386ab02
1415021b62
15c877b1c
hex888305a

143143002 has 12 divisors (see below), whose sum is σ = 310143210. Its totient is φ = 47714328.

The previous prime is 143142971. The next prime is 143143003. The reversal of 143143002 is 200341341.

It can be written as a sum of positive squares in only one way, i.e., 78163281 + 64979721 = 8841^2 + 8061^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 7952389 = 143143002 / (1 + 4 + 3 + 1 + 4 + 3 + 0 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (143143003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3976177 + ... + 3976212.

Almost surely, 2143143002 is an apocalyptic number.

143143002 is an abundant number, since it is smaller than the sum of its proper divisors (167000208).

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

143143002 is a wasteful number, since it uses less digits than its factorization.

143143002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7952397 (or 7952394 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 143143002 is about 11964.2384630197. The cubic root of 143143002 is about 523.1064082583.

Adding to 143143002 its reverse (200341341), we get a palindrome (343484343).

The spelling of 143143002 in words is "one hundred forty-three million, one hundred forty-three thousand, two".

Divisors: 1 2 3 6 9 18 7952389 15904778 23857167 47714334 71571501 143143002