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144484754 = 272242377
BaseRepresentation
bin10001001110010…
…10100110010010
3101001212120211012
420213022212102
5243442003004
622200450522
73403046231
oct1047124622
9331776735
10144484754
1174615597
1240479a42
1323c1a74b
1415290b18
15ca4046e
hex89ca992

144484754 has 4 divisors (see below), whose sum is σ = 216727134. Its totient is φ = 72242376.

The previous prime is 144484729. The next prime is 144484771. The reversal of 144484754 is 457484441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 457484441 = 1792555779.

It can be written as a sum of positive squares in only one way, i.e., 136773025 + 7711729 = 11695^2 + 2777^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36121187 + ... + 36121190.

Almost surely, 2144484754 is an apocalyptic number.

144484754 is a deficient number, since it is larger than the sum of its proper divisors (72242380).

144484754 is an equidigital number, since it uses as much as digits as its factorization.

144484754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72242379.

The product of its digits is 286720, while the sum is 41.

The square root of 144484754 is about 12020.1811134442. The cubic root of 144484754 is about 524.7357751295.

The spelling of 144484754 in words is "one hundred forty-four million, four hundred eighty-four thousand, seven hundred fifty-four".

Divisors: 1 2 72242377 144484754