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103144161 = 3312833919
BaseRepresentation
bin1100010010111…
…01101011100001
321012002021012010
412021131223201
5202401103121
614122423133
72361465561
oct611355341
9235067163
10103144161
115324980a
122a661aa9
13184a4963
14d9acda1
1590c6376
hex625dae1

103144161 has 16 divisors (see below), whose sum is σ = 142499840. Its totient is φ = 66292560.

The previous prime is 103144159. The next prime is 103144163. The reversal of 103144161 is 161441301.

It is an interprime number because it is at equal distance from previous prime (103144159) and next prime (103144163).

It is not a de Polignac number, because 103144161 - 21 = 103144159 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (103144163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24360 + ... + 28278.

It is an arithmetic number, because the mean of its divisors is an integer number (8906240).

Almost surely, 2103144161 is an apocalyptic number.

It is an amenable number.

103144161 is a deficient number, since it is larger than the sum of its proper divisors (39355679).

103144161 is a wasteful number, since it uses less digits than its factorization.

103144161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4236.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 103144161 is about 10155.9913843997. The cubic root of 103144161 is about 468.9734058991.

Adding to 103144161 its reverse (161441301), we get a palindrome (264585462).

The spelling of 103144161 in words is "one hundred three million, one hundred forty-four thousand, one hundred sixty-one".

Divisors: 1 3 31 93 283 849 3919 8773 11757 26319 121489 364467 1109077 3327231 34381387 103144161