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142222301 = 1371154087
BaseRepresentation
bin10000111101000…
…10001111011101
3100220121122022122
420132202033131
5242402103201
622040152325
73344604164
oct1036421735
9326548278
10142222301
117330a7a1
123b7686a5
1323607a10
1414c623db
15c744e1b
hex87a23dd

142222301 has 8 divisors (see below), whose sum is σ = 155320704. Its totient is φ = 129432240.

The previous prime is 142222291. The next prime is 142222313. The reversal of 142222301 is 103222241.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-142222301 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 142222301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142222321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76121 + ... + 77966.

It is an arithmetic number, because the mean of its divisors is an integer number (19415088).

Almost surely, 2142222301 is an apocalyptic number.

It is an amenable number.

142222301 is a deficient number, since it is larger than the sum of its proper divisors (13098403).

142222301 is a wasteful number, since it uses less digits than its factorization.

142222301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154171.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 142222301 is about 11925.6991828572. The cubic root of 142222301 is about 521.9824485323.

Adding to 142222301 its reverse (103222241), we get a palindrome (245444542).

The spelling of 142222301 in words is "one hundred forty-two million, two hundred twenty-two thousand, three hundred one".

Divisors: 1 13 71 923 154087 2003131 10940177 142222301