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142201 = 433307
BaseRepresentation
bin100010101101111001
321020001201
4202231321
514022301
63014201
71131403
oct425571
9236051
10142201
1197924
126a361
134c957
1439b73
152c201
hex22b79

142201 has 4 divisors (see below), whose sum is σ = 145552. Its totient is φ = 138852.

The previous prime is 142193. The next prime is 142211. The reversal of 142201 is 102241.

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 not a de Polignac number, because 142201 - 23 = 142193 is a prime.

It is a super-2 number, since 2×1422012 = 40442248802, which contains 22 as substring.

It is a Duffinian number.

142201 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (142211) 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, 1611 + ... + 1696.

It is an arithmetic number, because the mean of its divisors is an integer number (36388).

2142201 is an apocalyptic number.

It is an amenable number.

142201 is a deficient number, since it is larger than the sum of its proper divisors (3351).

142201 is an equidigital number, since it uses as much as digits as its factorization.

142201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3350.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 142201 is about 377.0954786258. The cubic root of 142201 is about 52.1956387680.

Adding to 142201 its reverse (102241), we get a palindrome (244442).

It can be divided in two parts, 142 and 201, that added together give a palindrome (343).

The spelling of 142201 in words is "one hundred forty-two thousand, two hundred one", and thus it is an iban number.

Divisors: 1 43 3307 142201