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103144 = 2312893
BaseRepresentation
bin11001001011101000
312020111011
4121023220
511300034
62113304
7606466
oct311350
9166434
10103144
1170548
124b834
1337c42
1429836
1520864
hex192e8

103144 has 8 divisors (see below), whose sum is σ = 193410. Its totient is φ = 51568.

The previous prime is 103141. The next prime is 103171. The reversal of 103144 is 441301.

It can be written as a sum of positive squares in only one way, i.e., 84100 + 19044 = 290^2 + 138^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (103141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6439 + ... + 6454.

2103144 is an apocalyptic number.

It is an amenable number.

103144 is a deficient number, since it is larger than the sum of its proper divisors (90266).

103144 is a wasteful number, since it uses less digits than its factorization.

103144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12899 (or 12895 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 103144 is about 321.1603960640. The cubic root of 103144 is about 46.8973161889.

Adding to 103144 its reverse (441301), we get a palindrome (544445).

The spelling of 103144 in words is "one hundred three thousand, one hundred forty-four", and thus it is an iban number.

Divisors: 1 2 4 8 12893 25786 51572 103144