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103140042 = 2369124877
BaseRepresentation
bin1100010010111…
…00101011001010
321012002001112120
412021130223022
5202400440132
614122352110
72361450555
oct611345312
9235061476
10103140042
1153246705
122a65b636
13184a2b15
14d9ab69c
1590c502c
hex625caca

103140042 has 16 divisors (see below), whose sum is σ = 206586912. Its totient is φ = 34328880.

The previous prime is 103140031. The next prime is 103140049. The reversal of 103140042 is 240041301.

It is not an unprimeable number, because it can be changed into a prime (103140049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8293 + ... + 16584.

It is an arithmetic number, because the mean of its divisors is an integer number (12911682).

Almost surely, 2103140042 is an apocalyptic number.

103140042 is an abundant number, since it is smaller than the sum of its proper divisors (103446870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103140042 is a wasteful number, since it uses less digits than its factorization.

103140042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25573.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 103140042 is about 10155.7885956729. The cubic root of 103140042 is about 468.9671630924.

Adding to 103140042 its reverse (240041301), we get a palindrome (343181343).

The spelling of 103140042 in words is "one hundred three million, one hundred forty thousand, forty-two".

Divisors: 1 2 3 6 691 1382 2073 4146 24877 49754 74631 149262 17190007 34380014 51570021 103140042