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144474169 = 761338347
BaseRepresentation
bin10001001110010…
…00000000111001
3101001212001022011
420213020000321
5243441133134
622200325521
73403003330
oct1047100071
9331761264
10144474169
1174608644
12404738a1
1323c15998
141528ad17
15ca3c264
hex89c8039

144474169 has 8 divisors (see below), whose sum is σ = 167820608. Its totient is φ = 121804560.

The previous prime is 144474163. The next prime is 144474191. The reversal of 144474169 is 961474441.

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 144474169 - 225 = 110919737 is a prime.

It is a super-2 number, since 2×1444741692 = 41745571016481122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144474163) 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, 168747 + ... + 169600.

It is an arithmetic number, because the mean of its divisors is an integer number (20977576).

Almost surely, 2144474169 is an apocalyptic number.

It is an amenable number.

144474169 is a deficient number, since it is larger than the sum of its proper divisors (23346439).

144474169 is an equidigital number, since it uses as much as digits as its factorization.

144474169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338415.

The product of its digits is 96768, while the sum is 40.

The square root of 144474169 is about 12019.7408041937. The cubic root of 144474169 is about 524.7229607121.

The spelling of 144474169 in words is "one hundred forty-four million, four hundred seventy-four thousand, one hundred sixty-nine".

Divisors: 1 7 61 427 338347 2368429 20639167 144474169