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144520201 = 7231635507
BaseRepresentation
bin10001001110100…
…11010000001001
3101001221101110001
420213103100021
5243444121301
622201323001
73403254460
oct1047232011
9331841401
10144520201
117463a191
1240496461
1323c30917
141529d9d7
15ca4ac01
hex89d3409

144520201 has 16 divisors (see below), whose sum is σ = 173435904. Its totient is φ = 117740304.

The previous prime is 144520183. The next prime is 144520219. The reversal of 144520201 is 102025441.

It is an interprime number because it is at equal distance from previous prime (144520183) and next prime (144520219).

It is a cyclic number.

It is not a de Polignac number, because 144520201 - 27 = 144520073 is a prime.

It is a super-6 number, since 6×1445202016 (a number of 50 digits) contains 666666 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144523201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23490 + ... + 28996.

It is an arithmetic number, because the mean of its divisors is an integer number (10839744).

Almost surely, 2144520201 is an apocalyptic number.

It is an amenable number.

144520201 is a deficient number, since it is larger than the sum of its proper divisors (28915703).

144520201 is a wasteful number, since it uses less digits than its factorization.

144520201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5700.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 144520201 is about 12021.6555016354. The cubic root of 144520201 is about 524.7786834355.

Adding to 144520201 its reverse (102025441), we get a palindrome (246545642).

The spelling of 144520201 in words is "one hundred forty-four million, five hundred twenty thousand, two hundred one".

Divisors: 1 7 23 161 163 1141 3749 5507 26243 38549 126661 886627 897641 6283487 20645743 144520201