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142102201201 = 1009140834689
BaseRepresentation
bin1000010001010111110…
…0111000001101110001
3111120210100100202122221
42010111330320031301
54312011130414301
6145140355201041
713160265531532
oct2042574701561
9446710322587
10142102201201
11552a0a96004
12236598a6181
1310528270a2c
146c408cc689
153a6a570da1
hex2115f38371

142102201201 has 4 divisors (see below), whose sum is σ = 142243036900. Its totient is φ = 141961365504.

The previous prime is 142102201193. The next prime is 142102201217. The reversal of 142102201201 is 102102201241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11980397025 + 130121804176 = 109455^2 + 360724^2 .

It is a cyclic number.

It is not a de Polignac number, because 142102201201 - 23 = 142102201193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142102201231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70416336 + ... + 70418353.

It is an arithmetic number, because the mean of its divisors is an integer number (35560759225).

Almost surely, 2142102201201 is an apocalyptic number.

It is an amenable number.

142102201201 is a deficient number, since it is larger than the sum of its proper divisors (140835699).

142102201201 is a wasteful number, since it uses less digits than its factorization.

142102201201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140835698.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 142102201201 its reverse (102102201241), we get a palindrome (244204402442).

The spelling of 142102201201 in words is "one hundred forty-two billion, one hundred two million, two hundred one thousand, two hundred one".

Divisors: 1 1009 140834689 142102201201