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142205300233 = 1311085536643
BaseRepresentation
bin1000010001110000011…
…0001010111000001001
3111121001112100201221121
42010130012022320021
54312214024101413
6145154521035241
713162660052023
oct2043406127011
9447045321847
10142205300233
1155344203917
1223688325b21
131054372ac89
146c50489013
153a74638b8d
hex211c18ae09

142205300233 has 4 divisors (see below), whose sum is σ = 143290837008. Its totient is φ = 141119763460.

The previous prime is 142205300207. The next prime is 142205300239. The reversal of 142205300233 is 332003502241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-142205300233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142205300198 and 142205300207.

It is not an unprimeable number, because it can be changed into a prime (142205300239) 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, 542768191 + ... + 542768452.

It is an arithmetic number, because the mean of its divisors is an integer number (35822709252).

Almost surely, 2142205300233 is an apocalyptic number.

It is an amenable number.

142205300233 is a deficient number, since it is larger than the sum of its proper divisors (1085536775).

142205300233 is a wasteful number, since it uses less digits than its factorization.

142205300233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085536774.

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 142205300233 its reverse (332003502241), we get a palindrome (474208802474).

The spelling of 142205300233 in words is "one hundred forty-two billion, two hundred five million, three hundred thousand, two hundred thirty-three".

Divisors: 1 131 1085536643 142205300233