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103042423 = 11172919001
BaseRepresentation
bin1100010010001…
…00110101110111
321011220002122001
412021010311313
5202334324143
614120320131
72360563141
oct611046567
9234802561
10103042423
115318a330
122a613047
131846a563
14d983c91
1590a614d
hex6244d77

103042423 has 16 divisors (see below), whose sum is σ = 123132960. Its totient is φ = 85120000.

The previous prime is 103042411. The next prime is 103042427. The reversal of 103042423 is 324240301.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-103042423 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 103042423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103042427) 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, 4078 + ... + 14923.

It is an arithmetic number, because the mean of its divisors is an integer number (7695810).

Almost surely, 2103042423 is an apocalyptic number.

103042423 is a deficient number, since it is larger than the sum of its proper divisors (20090537).

103042423 is a wasteful number, since it uses less digits than its factorization.

103042423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19058.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 103042423 is about 10150.9813811276. The cubic root of 103042423 is about 468.8191618720.

Adding to 103042423 its reverse (324240301), we get a palindrome (427282724).

The spelling of 103042423 in words is "one hundred three million, forty-two thousand, four hundred twenty-three".

Divisors: 1 11 17 29 187 319 493 5423 19001 209011 323017 551029 3553187 6061319 9367493 103042423