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142025113 = 229620197
BaseRepresentation
bin10000111011100…
…10000110011001
3100220020121211101
420131302012121
5242324300423
622032031401
73343123246
oct1035620631
9326217741
10142025113
117319562a
123b692561
1323569039
1414c105cd
15c7067ad
hex8772199

142025113 has 4 divisors (see below), whose sum is σ = 142645540. Its totient is φ = 141404688.

The previous prime is 142025101. The next prime is 142025119. The reversal of 142025113 is 311520241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 311520241 = 449693809.

It can be written as a sum of positive squares in 2 ways, for example, as 136702864 + 5322249 = 11692^2 + 2307^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-142025113 is a prime.

It is a super-2 number, since 2×1420251132 = 40342265445325538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142025119) 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 3 ways as a sum of consecutive naturals, for example, 309870 + ... + 310327.

It is an arithmetic number, because the mean of its divisors is an integer number (35661385).

Almost surely, 2142025113 is an apocalyptic number.

It is an amenable number.

142025113 is a deficient number, since it is larger than the sum of its proper divisors (620427).

142025113 is an equidigital number, since it uses as much as digits as its factorization.

142025113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620426.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 142025113 is about 11917.4289593016. The cubic root of 142025113 is about 521.7410980070.

Adding to 142025113 its reverse (311520241), we get a palindrome (453545354).

The spelling of 142025113 in words is "one hundred forty-two million, twenty-five thousand, one hundred thirteen".

Divisors: 1 229 620197 142025113