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144307880 = 2353607697
BaseRepresentation
bin10001001100111…
…11011010101000
3101001112121012022
420212133122220
5243420323010
622153004012
73401411453
oct1046373250
9331477168
10144307880
1174504712
12403b3608
1323b880a2
141524649a
15ca07d55
hex899f6a8

144307880 has 16 divisors (see below), whose sum is σ = 324692820. Its totient is φ = 57723136.

The previous prime is 144307843. The next prime is 144307901. The reversal of 144307880 is 88703441.

It is a happy number.

144307880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 143472484 + 835396 = 11978^2 + 914^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 144307880.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1803809 + ... + 1803888.

Almost surely, 2144307880 is an apocalyptic number.

144307880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144307880 is an abundant number, since it is smaller than the sum of its proper divisors (180384940).

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

144307880 is a wasteful number, since it uses less digits than its factorization.

144307880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3607708 (or 3607704 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 144307880 is about 12012.8214837315. The cubic root of 144307880 is about 524.5215656452.

The spelling of 144307880 in words is "one hundred forty-four million, three hundred seven thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 3607697 7215394 14430788 18038485 28861576 36076970 72153940 144307880