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103144055 = 572946973
BaseRepresentation
bin1100010010111…
…01101001110111
321012002021001012
412021131221313
5202401102210
614122422435
72361465350
oct611355167
9235067035
10103144055
1153249723
122a661a1b
13184a48b1
14d9acd27
1590c6305
hex625da77

103144055 has 8 divisors (see below), whose sum is σ = 141454752. Its totient is φ = 70727328.

The previous prime is 103144051. The next prime is 103144061. The reversal of 103144055 is 550441301.

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

It is not a de Polignac number, because 103144055 - 22 = 103144051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103144055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103144051) 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, 1473452 + ... + 1473521.

It is an arithmetic number, because the mean of its divisors is an integer number (17681844).

Almost surely, 2103144055 is an apocalyptic number.

103144055 is a deficient number, since it is larger than the sum of its proper divisors (38310697).

103144055 is an equidigital number, since it uses as much as digits as its factorization.

103144055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2946985.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 103144055 is about 10155.9861658039. The cubic root of 103144055 is about 468.9732452463.

Adding to 103144055 its reverse (550441301), we get a palindrome (653585356).

The spelling of 103144055 in words is "one hundred three million, one hundred forty-four thousand, fifty-five".

Divisors: 1 5 7 35 2946973 14734865 20628811 103144055