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142242607 = 1319718111
BaseRepresentation
bin10000111101001…
…11001100101111
3100220122200011201
420132213030233
5242403230412
622040430331
73345020323
oct1036471457
9326580151
10142242607
1173323a81
123b7783a7
1323614030
1414c69983
15c74ae57
hex87a732f

142242607 has 16 divisors (see below), whose sum is σ = 163537920. Its totient is φ = 122623200.

The previous prime is 142242599. The next prime is 142242623. The reversal of 142242607 is 706242241.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 142242607 - 23 = 142242599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142242637) 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, 13482 + ... + 21592.

It is an arithmetic number, because the mean of its divisors is an integer number (10221120).

Almost surely, 2142242607 is an apocalyptic number.

142242607 is a deficient number, since it is larger than the sum of its proper divisors (21295313).

142242607 is a wasteful number, since it uses less digits than its factorization.

142242607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8214.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 142242607 is about 11926.5505071668. The cubic root of 142242607 is about 522.0072896229.

Adding to 142242607 its reverse (706242241), we get a palindrome (848484848).

The spelling of 142242607 in words is "one hundred forty-two million, two hundred forty-two thousand, six hundred seven".

Divisors: 1 13 19 71 247 923 1349 8111 17537 105443 154109 575881 2003417 7486453 10941739 142242607