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144729711 = 3272297297
BaseRepresentation
bin10001010000001…
…10011001101111
3101002100000211200
420220012121233
5244022322321
622210020543
73405116340
oct1050063157
9332300750
10144729711
1174772635
1240577753
1323ca50a9
14153160c7
15ca8cd26
hex8a0666f

144729711 has 12 divisors (see below), whose sum is σ = 238918992. Its totient is φ = 82702656.

The previous prime is 144729709. The next prime is 144729733. The reversal of 144729711 is 117927441.

It is not a de Polignac number, because 144729711 - 21 = 144729709 is a prime.

It is a super-2 number, since 2×1447297112 = 41893378492287042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144729751) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1148586 + ... + 1148711.

It is an arithmetic number, because the mean of its divisors is an integer number (19909916).

Almost surely, 2144729711 is an apocalyptic number.

144729711 is a deficient number, since it is larger than the sum of its proper divisors (94189281).

144729711 is a wasteful number, since it uses less digits than its factorization.

144729711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2297310 (or 2297307 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 144729711 is about 12030.3662039025. The cubic root of 144729711 is about 525.0321504121.

The spelling of 144729711 in words is "one hundred forty-four million, seven hundred twenty-nine thousand, seven hundred eleven".

Divisors: 1 3 7 9 21 63 2297297 6891891 16081079 20675673 48243237 144729711