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103143023 = 445123173
BaseRepresentation
bin1100010010111…
…01011001101111
321012002012121222
412021131121233
5202401034043
614122413555
72361462344
oct611353157
9235065558
10103143023
1153248975
122a6612bb
13184a4299
14d9ac7cb
1590c5d68
hex625d66f

103143023 has 4 divisors (see below), whose sum is σ = 103170648. Its totient is φ = 103115400.

The previous prime is 103143011. The next prime is 103143113. The reversal of 103143023 is 320341301.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 103143023 - 26 = 103142959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103142992 and 103143010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103143223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7136 + ... + 16037.

It is an arithmetic number, because the mean of its divisors is an integer number (25792662).

Almost surely, 2103143023 is an apocalyptic number.

103143023 is a deficient number, since it is larger than the sum of its proper divisors (27625).

103143023 is an equidigital number, since it uses as much as digits as its factorization.

103143023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27624.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 103143023 is about 10155.9353582031. The cubic root of 103143023 is about 468.9716811490.

Adding to 103143023 its reverse (320341301), we get a palindrome (423484324).

The spelling of 103143023 in words is "one hundred three million, one hundred forty-three thousand, twenty-three".

Divisors: 1 4451 23173 103143023