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142201027 = 377948649
BaseRepresentation
bin10000111100111…
…01000011000011
3100220120120010201
420132131003003
5242400413102
622035510031
73344455153
oct1036350303
9326516121
10142201027
11732a5811
123b758317
13235cb127
1414c58763
15c73d987
hex879d0c3

142201027 has 8 divisors (see below), whose sum is σ = 147896000. Its totient is φ = 136603584.

The previous prime is 142201009. The next prime is 142201069. The reversal of 142201027 is 720102241.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142201027 - 27 = 142200899 is a prime.

It is a super-2 number, since 2×1422010272 = 40442264159709458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142200995 and 142201013.

It is not an unprimeable number, because it can be changed into a prime (142205027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21402 + ... + 27247.

It is an arithmetic number, because the mean of its divisors is an integer number (18487000).

Almost surely, 2142201027 is an apocalyptic number.

142201027 is a deficient number, since it is larger than the sum of its proper divisors (5694973).

142201027 is an equidigital number, since it uses as much as digits as its factorization.

142201027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48765.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 142201027 is about 11924.8072101816. The cubic root of 142201027 is about 521.9564207146.

Adding to 142201027 its reverse (720102241), we get a palindrome (862303268).

The spelling of 142201027 in words is "one hundred forty-two million, two hundred one thousand, twenty-seven".

Divisors: 1 37 79 2923 48649 1800013 3843271 142201027