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144542936 = 2371397641
BaseRepresentation
bin10001001110110…
…00110011011000
3101001222112122002
420213120303120
5244000333221
622202020132
73403410656
oct1047306330
9331875562
10144542936
117465527a
12404a7648
1323c3b085
14152a7dd6
15ca5280b
hex89d8cd8

144542936 has 32 divisors (see below), whose sum is σ = 275957280. Its totient is φ = 70963200.

The previous prime is 144542929. The next prime is 144542941. The reversal of 144542936 is 639245441.

It is a self number, because there is not a number n which added to its sum of digits gives 144542936.

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 7 ways as a sum of consecutive naturals, for example, 225176 + ... + 225816.

It is an arithmetic number, because the mean of its divisors is an integer number (8623665).

Almost surely, 2144542936 is an apocalyptic number.

It is an amenable number.

144542936 is a deficient number, since it is larger than the sum of its proper divisors (131414344).

144542936 is a wasteful number, since it uses less digits than its factorization.

144542936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115 (or 1111 counting only the distinct ones).

The product of its digits is 103680, while the sum is 38.

The square root of 144542936 is about 12022.6010496897. The cubic root of 144542936 is about 524.8062002756.

The spelling of 144542936 in words is "one hundred forty-four million, five hundred forty-two thousand, nine hundred thirty-six".

Divisors: 1 2 4 8 71 142 284 397 568 641 794 1282 1588 2564 3176 5128 28187 45511 56374 91022 112748 182044 225496 254477 364088 508954 1017908 2035816 18067867 36135734 72271468 144542936