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1144288129 = 1966919001
BaseRepresentation
bin100010000110100…
…0111001110000001
32221202011212012211
41010031013032001
54320414210004
6305314022121
740233200665
oct10415071601
92852155184
101144288129
11537a14676
1227b277941
131530b928a
14abd8a8a5
156a6d3504
hex44347381

1144288129 has 8 divisors (see below), whose sum is σ = 1204827680. Its totient is φ = 1083780000.

The previous prime is 1144288127. The next prime is 1144288141. The reversal of 1144288129 is 9218824411.

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

It is a cyclic number.

It is not a de Polignac number, because 1144288129 - 21 = 1144288127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1144288091 and 1144288100.

It is not an unprimeable number, because it can be changed into a prime (1144288127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122629 + ... + 131629.

It is an arithmetic number, because the mean of its divisors is an integer number (150603460).

Almost surely, 21144288129 is an apocalyptic number.

1144288129 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1144288129 is a deficient number, since it is larger than the sum of its proper divisors (60539551).

1144288129 is an equidigital number, since it uses as much as digits as its factorization.

1144288129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15711.

The product of its digits is 36864, while the sum is 40.

The square root of 1144288129 is about 33827.3281386514. The cubic root of 1144288129 is about 1045.9521031290.

The spelling of 1144288129 in words is "one billion, one hundred forty-four million, two hundred eighty-eight thousand, one hundred twenty-nine".

Divisors: 1 19 6691 9001 127129 171019 60225691 1144288129