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142425201 = 3173737487
BaseRepresentation
bin10000111110100…
…11110001110001
3100220222221122110
420133103301301
5242430101301
622044355533
73346410552
oct1037236161
9326887573
10142425201
1173439186
123b845ba9
1323679189
1414cb6329
15c7850d6
hex87d3c71

142425201 has 16 divisors (see below), whose sum is σ = 201636864. Its totient is φ = 89113344.

The previous prime is 142425169. The next prime is 142425203. The reversal of 142425201 is 102524241.

It is not a de Polignac number, because 142425201 - 25 = 142425169 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142425203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15280 + ... + 22766.

It is an arithmetic number, because the mean of its divisors is an integer number (12602304).

Almost surely, 2142425201 is an apocalyptic number.

It is an amenable number.

142425201 is a deficient number, since it is larger than the sum of its proper divisors (59211663).

142425201 is a wasteful number, since it uses less digits than its factorization.

142425201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7880.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 142425201 is about 11934.2029897266. The cubic root of 142425201 is about 522.2305575669.

Adding to 142425201 its reverse (102524241), we get a palindrome (244949442).

The spelling of 142425201 in words is "one hundred forty-two million, four hundred twenty-five thousand, two hundred one".

Divisors: 1 3 17 51 373 1119 6341 7487 19023 22461 127279 381837 2792651 8377953 47475067 142425201