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144712642 = 2233145927
BaseRepresentation
bin10001010000000…
…10001111000010
3101002022011102111
420220002033002
5244021301032
622205405534
73405015514
oct1050021702
9332264374
10144712642
1174760828
12405698aa
1323c9a3a9
141530dbb4
15ca87c47
hex8a023c2

144712642 has 8 divisors (see below), whose sum is σ = 226506816. Its totient is φ = 69210372.

The previous prime is 144712637. The next prime is 144712643. The reversal of 144712642 is 246217441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (144712643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1572918 + ... + 1573009.

It is an arithmetic number, because the mean of its divisors is an integer number (28313352).

Almost surely, 2144712642 is an apocalyptic number.

144712642 is a deficient number, since it is larger than the sum of its proper divisors (81794174).

144712642 is a wasteful number, since it uses less digits than its factorization.

144712642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3145952.

The product of its digits is 10752, while the sum is 31.

The square root of 144712642 is about 12029.6567698335. The cubic root of 144712642 is about 525.0115093471.

The spelling of 144712642 in words is "one hundred forty-four million, seven hundred twelve thousand, six hundred forty-two".

Divisors: 1 2 23 46 3145927 6291854 72356321 144712642