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40303141 = 1710123473
BaseRepresentation
bin1001100110111…
…1101000100101
32210211121111221
42121233220211
540304200031
63555500341
7666366604
oct231575045
983747457
1040303141
112082838a
12115b76b1
138471818
1454d1a3b
153811a11
hex266fa25

40303141 has 8 divisors (see below), whose sum is σ = 43098264. Its totient is φ = 37555200.

The previous prime is 40303139. The next prime is 40303157. The reversal of 40303141 is 14130304.

It can be written as a sum of positive squares in 4 ways, for example, as 34281025 + 6022116 = 5855^2 + 2454^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 40303141 - 21 = 40303139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40303171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10020 + ... + 13453.

It is an arithmetic number, because the mean of its divisors is an integer number (5387283).

Almost surely, 240303141 is an apocalyptic number.

It is an amenable number.

40303141 is a deficient number, since it is larger than the sum of its proper divisors (2795123).

40303141 is a wasteful number, since it uses less digits than its factorization.

40303141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23591.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 40303141 is about 6348.4754862880. The cubic root of 40303141 is about 342.8569557125.

Adding to 40303141 its reverse (14130304), we get a palindrome (54433445).

The spelling of 40303141 in words is "forty million, three hundred three thousand, one hundred forty-one".

Divisors: 1 17 101 1717 23473 399041 2370773 40303141