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144020051 = 767307079
BaseRepresentation
bin10001001010110…
…01001001010011
3101000222222100222
420211121021103
5243332120201
622142503255
73366102350
oct1045311123
9330888328
10144020051
117432843a
1240294b2b
1323ab7086
14151ad627
15c99c91b
hex8959253

144020051 has 8 divisors (see below), whose sum is σ = 167051520. Its totient is φ = 121602888.

The previous prime is 144020033. The next prime is 144020099. The reversal of 144020051 is 150020441.

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 144020051 - 26 = 144019987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144020951) 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, 153071 + ... + 154008.

It is an arithmetic number, because the mean of its divisors is an integer number (20881440).

Almost surely, 2144020051 is an apocalyptic number.

144020051 is a deficient number, since it is larger than the sum of its proper divisors (23031469).

144020051 is an equidigital number, since it uses as much as digits as its factorization.

144020051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307153.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 144020051 is about 12000.8354292524. The cubic root of 144020051 is about 524.1726057153.

Adding to 144020051 its reverse (150020441), we get a palindrome (294040492).

The spelling of 144020051 in words is "one hundred forty-four million, twenty thousand, fifty-one".

Divisors: 1 7 67 469 307079 2149553 20574293 144020051