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143868002 = 271934001
BaseRepresentation
bin10001001001101…
…00000001100010
3101000201020210112
420210310001202
5243312234002
622135331322
73364600145
oct1044640142
9330636715
10143868002
1174234183
1240220b42
1323a62ac5
141517005c
15c96c852
hex8934062

143868002 has 4 divisors (see below), whose sum is σ = 215802006. Its totient is φ = 71934000.

The previous prime is 143867989. The next prime is 143868007. The reversal of 143868002 is 200868341.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 88529281 + 55338721 = 9409^2 + 7439^2 .

It is a super-3 number, since 3×1438680023 (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 143868002.

It is not an unprimeable number, because it can be changed into a prime (143868007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35966999 + ... + 35967002.

Almost surely, 2143868002 is an apocalyptic number.

143868002 is a deficient number, since it is larger than the sum of its proper divisors (71934004).

143868002 is an equidigital number, since it uses as much as digits as its factorization.

143868002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71934003.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 143868002 is about 11994.4988223769. The cubic root of 143868002 is about 523.9880758897.

The spelling of 143868002 in words is "one hundred forty-three million, eight hundred sixty-eight thousand, two".

Divisors: 1 2 71934001 143868002