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144692201 = 197615379
BaseRepresentation
bin10001001111111…
…01001111101001
3101002021010101102
420213331033221
5244020122301
622205131145
73404602103
oct1047751751
9332233342
10144692201
1174747435
1240559ab5
1323c90cb4
1415306573
15ca81b6b
hex89fd3e9

144692201 has 4 divisors (see below), whose sum is σ = 152307600. Its totient is φ = 137076804.

The previous prime is 144692167. The next prime is 144692209. The reversal of 144692201 is 102296441.

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 144692201 - 210 = 144691177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144692209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3807671 + ... + 3807708.

It is an arithmetic number, because the mean of its divisors is an integer number (38076900).

Almost surely, 2144692201 is an apocalyptic number.

It is an amenable number.

144692201 is a deficient number, since it is larger than the sum of its proper divisors (7615399).

144692201 is an equidigital number, since it uses as much as digits as its factorization.

144692201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7615398.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 144692201 is about 12028.8071312163. The cubic root of 144692201 is about 524.9867884808.

The spelling of 144692201 in words is "one hundred forty-four million, six hundred ninety-two thousand, two hundred one".

Divisors: 1 19 7615379 144692201