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144292688 = 2419474647
BaseRepresentation
bin10001001100110…
…11101101010000
3101001111211100122
420212123231100
5243414331223
622152405412
73401316251
oct1046335520
9331454318
10144292688
11744a4261
12403a6868
1323b811b7
1415240b28
15ca035c8
hex899bb50

144292688 has 20 divisors (see below), whose sum is σ = 294281760. Its totient is φ = 68349024.

The previous prime is 144292667. The next prime is 144292699. The reversal of 144292688 is 886292441.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237020 + ... + 237627.

It is an arithmetic number, because the mean of its divisors is an integer number (14714088).

Almost surely, 2144292688 is an apocalyptic number.

It is an amenable number.

144292688 is an abundant number, since it is smaller than the sum of its proper divisors (149989072).

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

144292688 is a wasteful number, since it uses less digits than its factorization.

144292688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474674 (or 474668 counting only the distinct ones).

The product of its digits is 221184, while the sum is 44.

The square root of 144292688 is about 12012.1891427000. The cubic root of 144292688 is about 524.5031586780.

The spelling of 144292688 in words is "one hundred forty-four million, two hundred ninety-two thousand, six hundred eighty-eight".

Divisors: 1 2 4 8 16 19 38 76 152 304 474647 949294 1898588 3797176 7594352 9018293 18036586 36073172 72146344 144292688