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103440141 = 3271641907
BaseRepresentation
bin1100010101001…
…01111100001101
321012122022012100
412022211330031
5202440041031
614133025313
72364140520
oct612457415
9235568170
10103440141
1153431122
122a785239
13185795ac
14da48bb7
159133de6
hex62a5f0d

103440141 has 12 divisors (see below), whose sum is σ = 170758432. Its totient is φ = 59108616.

The previous prime is 103440137. The next prime is 103440143. The reversal of 103440141 is 141044301.

It is not a de Polignac number, because 103440141 - 22 = 103440137 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103440143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 820891 + ... + 821016.

Almost surely, 2103440141 is an apocalyptic number.

It is an amenable number.

103440141 is a deficient number, since it is larger than the sum of its proper divisors (67318291).

103440141 is a wasteful number, since it uses less digits than its factorization.

103440141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641920 (or 1641917 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 103440141 is about 10170.5526398520. The cubic root of 103440141 is about 469.4215624289.

Adding to 103440141 its reverse (141044301), we get a palindrome (244484442).

The spelling of 103440141 in words is "one hundred three million, four hundred forty thousand, one hundred forty-one".

Divisors: 1 3 7 9 21 63 1641907 4925721 11493349 14777163 34480047 103440141