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103142105 = 5111875311
BaseRepresentation
bin1100010010111…
…01001011011001
321012002011100222
412021131023121
5202401021410
614122405425
72361456563
oct611351331
9235064328
10103142105
1153248210
122a660875
13184a3a41
14d9ac333
1590c5955
hex625d2d9

103142105 has 8 divisors (see below), whose sum is σ = 135022464. Its totient is φ = 75012400.

The previous prime is 103142093. The next prime is 103142131. The reversal of 103142105 is 501241301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 103142105 - 26 = 103142041 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 937601 + ... + 937710.

It is an arithmetic number, because the mean of its divisors is an integer number (16877808).

Almost surely, 2103142105 is an apocalyptic number.

It is an amenable number.

103142105 is a deficient number, since it is larger than the sum of its proper divisors (31880359).

103142105 is a wasteful number, since it uses less digits than its factorization.

103142105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1875327.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 103142105 is about 10155.8901628562. The cubic root of 103142105 is about 468.9702898212.

Adding to 103142105 its reverse (501241301), we get a palindrome (604383406).

The spelling of 103142105 in words is "one hundred three million, one hundred forty-two thousand, one hundred five".

Divisors: 1 5 11 55 1875311 9376555 20628421 103142105