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142010147 = 1103128749
BaseRepresentation
bin10000111011011…
…10011100100011
3100220012212022002
420131232130203
5242323311042
622031434215
73343031516
oct1035563443
9326185262
10142010147
1173185364
123b68596b
1323562296
1414c08d7d
15c702132
hex876e723

142010147 has 4 divisors (see below), whose sum is σ = 142140000. Its totient is φ = 141880296.

The previous prime is 142010137. The next prime is 142010177. The reversal of 142010147 is 741010241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 741010241 = 1939000539.

It is a cyclic number.

It is not a de Polignac number, because 142010147 - 24 = 142010131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142010137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63272 + ... + 65477.

It is an arithmetic number, because the mean of its divisors is an integer number (35535000).

Almost surely, 2142010147 is an apocalyptic number.

142010147 is a deficient number, since it is larger than the sum of its proper divisors (129853).

142010147 is a wasteful number, since it uses less digits than its factorization.

142010147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129852.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 142010147 is about 11916.8010388694. The cubic root of 142010147 is about 521.7227710801.

Adding to 142010147 its reverse (741010241), we get a palindrome (883020388).

The spelling of 142010147 in words is "one hundred forty-two million, ten thousand, one hundred forty-seven".

Divisors: 1 1103 128749 142010147