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40012103 = 317317681
BaseRepresentation
bin1001100010100…
…0100101000111
32210021211021202
42120220211013
540220341403
63545333115
7664045235
oct230504507
983254252
1040012103
112064975a
121149719b
13839c201
145457955
1537a5688
hex2628947

40012103 has 8 divisors (see below), whose sum is σ = 41870976. Its totient is φ = 38188800.

The previous prime is 40012097. The next prime is 40012109. The reversal of 40012103 is 30121004.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40012097) and next prime (40012109).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-40012103 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 (40012109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6578 + ... + 11103.

It is an arithmetic number, because the mean of its divisors is an integer number (5233872).

Almost surely, 240012103 is an apocalyptic number.

40012103 is a deficient number, since it is larger than the sum of its proper divisors (1858873).

40012103 is a wasteful number, since it uses less digits than its factorization.

40012103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17785.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 40012103 is about 6325.5120741328. The cubic root of 40012103 is about 342.0296789218.

Adding to 40012103 its reverse (30121004), we get a palindrome (70133107).

The spelling of 40012103 in words is "forty million, twelve thousand, one hundred three".

Divisors: 1 31 73 2263 17681 548111 1290713 40012103