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142003201 = 636722303
BaseRepresentation
bin10000111011011…
…00110000000001
3100220012111202211
420131230300001
5242323100301
622031342121
73343002334
oct1035546001
9326174684
10142003201
117318011a
123b681941
132355c082
1414c0661b
15c700051
hex876cc01

142003201 has 4 divisors (see below), whose sum is σ = 142031872. Its totient is φ = 141974532.

The previous prime is 142003171. The next prime is 142003223. The reversal of 142003201 is 102300241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142003201 - 27 = 142003073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142003241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4785 + ... + 17518.

It is an arithmetic number, because the mean of its divisors is an integer number (35507968).

Almost surely, 2142003201 is an apocalyptic number.

It is an amenable number.

142003201 is a deficient number, since it is larger than the sum of its proper divisors (28671).

142003201 is an equidigital number, since it uses as much as digits as its factorization.

142003201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28670.

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

The square root of 142003201 is about 11916.5095980325. The cubic root of 142003201 is about 521.7142647738.

Adding to 142003201 its reverse (102300241), we get a palindrome (244303442).

The spelling of 142003201 in words is "one hundred forty-two million, three thousand, two hundred one".

Divisors: 1 6367 22303 142003201