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144432886 = 2137178241
BaseRepresentation
bin10001001101111…
…01111011110110
3101001202221200011
420212331323312
5243433323021
622155410434
73402442063
oct1046757366
9331687604
10144432886
117458a624
1240453a1a
1323bccc60
1415279c6a
15ca2ede1
hex89bdef6

144432886 has 16 divisors (see below), whose sum is σ = 236603808. Its totient is φ = 65721600.

The previous prime is 144432881. The next prime is 144432887. The reversal of 144432886 is 688234441.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144432881) 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, 37275 + ... + 40966.

It is an arithmetic number, because the mean of its divisors is an integer number (14787738).

Almost surely, 2144432886 is an apocalyptic number.

144432886 is a deficient number, since it is larger than the sum of its proper divisors (92170922).

144432886 is a wasteful number, since it uses less digits than its factorization.

144432886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78327.

The product of its digits is 147456, while the sum is 40.

The square root of 144432886 is about 12018.0233815715. The cubic root of 144432886 is about 524.6729766867.

The spelling of 144432886 in words is "one hundred forty-four million, four hundred thirty-two thousand, eight hundred eighty-six".

Divisors: 1 2 13 26 71 142 923 1846 78241 156482 1017133 2034266 5555111 11110222 72216443 144432886