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144429906 = 23191266929
BaseRepresentation
bin10001001101111…
…01001101010010
3101001202210120210
420212331031102
5243433224111
622155344550
73402430305
oct1046751522
9331683523
10144429906
1174588365
1240452156
1323bcb7aa
1415278b3c
15ca2e0a6
hex89bd352

144429906 has 16 divisors (see below), whose sum is σ = 304063200. Its totient is φ = 45609408.

The previous prime is 144429893. The next prime is 144429913. The reversal of 144429906 is 609924441.

144429906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 633351 + ... + 633578.

It is an arithmetic number, because the mean of its divisors is an integer number (19003950).

Almost surely, 2144429906 is an apocalyptic number.

144429906 is an abundant number, since it is smaller than the sum of its proper divisors (159633294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144429906 is a wasteful number, since it uses less digits than its factorization.

144429906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266953.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 144429906 is about 12017.8994004776. The cubic root of 144429906 is about 524.6693682374.

The spelling of 144429906 in words is "one hundred forty-four million, four hundred twenty-nine thousand, nine hundred six".

Divisors: 1 2 3 6 19 38 57 114 1266929 2533858 3800787 7601574 24071651 48143302 72214953 144429906