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142122301 = 2919724877
BaseRepresentation
bin10000111100010…
…01110100111101
3100220102120010221
420132021310331
5242340403201
622034101341
73344006506
oct1036116475
9326376127
10142122301
1173251652
123b71a851
13235a1349
1414c37bad
15c7254a1
hex8789d3d

142122301 has 8 divisors (see below), whose sum is σ = 147775320. Its totient is φ = 136519488.

The previous prime is 142122269. The next prime is 142122341. The reversal of 142122301 is 103221241.

It can be written as a sum of positive squares in 4 ways, for example, as 17264025 + 124858276 = 4155^2 + 11174^2 .

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 142122301 - 25 = 142122269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142122341) 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, 6726 + ... + 18151.

It is an arithmetic number, because the mean of its divisors is an integer number (18471915).

Almost surely, 2142122301 is an apocalyptic number.

It is an amenable number.

142122301 is a deficient number, since it is larger than the sum of its proper divisors (5653019).

142122301 is a wasteful number, since it uses less digits than its factorization.

142122301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25103.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 142122301 is about 11921.5058193166. The cubic root of 142122301 is about 521.8600802791.

Adding to 142122301 its reverse (103221241), we get a palindrome (245343542).

The spelling of 142122301 in words is "one hundred forty-two million, one hundred twenty-two thousand, three hundred one".

Divisors: 1 29 197 5713 24877 721433 4900769 142122301