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142222201 = 1119680489
BaseRepresentation
bin10000111101000…
…10001101111001
3100220121122011221
420132202031321
5242402102301
622040152041
73344603662
oct1036421571
9326548157
10142222201
117330a710
123b768621
1323607964
1414c62369
15c744da1
hex87a2379

142222201 has 8 divisors (see below), whose sum is σ = 163317600. Its totient is φ = 122487840.

The previous prime is 142222193. The next prime is 142222207. The reversal of 142222201 is 102222241.

142222201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 142222201 - 23 = 142222193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142222207) 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, 340036 + ... + 340453.

It is an arithmetic number, because the mean of its divisors is an integer number (20414700).

Almost surely, 2142222201 is an apocalyptic number.

142222201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

142222201 is a deficient number, since it is larger than the sum of its proper divisors (21095399).

142222201 is a wasteful number, since it uses less digits than its factorization.

142222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680519.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 142222201 is about 11925.6949902301. The cubic root of 142222201 is about 521.9823261927.

Adding to 142222201 its reverse (102222241), we get a palindrome (244444442).

The spelling of 142222201 in words is "one hundred forty-two million, two hundred twenty-two thousand, two hundred one".

Divisors: 1 11 19 209 680489 7485379 12929291 142222201