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40375141 = 101339857
BaseRepresentation
bin1001101000000…
…1001101100101
32210222021021121
42122001031211
540314001031
64001213541
71000116532
oct232011545
983867247
1040375141
1120877494
12116312b1
138498521
14550dd89
153828011
hex2681365

40375141 has 4 divisors (see below), whose sum is σ = 40416012. Its totient is φ = 40334272.

The previous prime is 40375129. The next prime is 40375147. The reversal of 40375141 is 14157304.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17850625 + 22524516 = 4225^2 + 4746^2 .

It is a cyclic number.

It is not a de Polignac number, because 40375141 - 25 = 40375109 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 (40375147) 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 3 ways as a sum of consecutive naturals, for example, 18916 + ... + 20941.

It is an arithmetic number, because the mean of its divisors is an integer number (10104003).

Almost surely, 240375141 is an apocalyptic number.

It is an amenable number.

40375141 is a deficient number, since it is larger than the sum of its proper divisors (40871).

40375141 is a wasteful number, since it uses less digits than its factorization.

40375141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40870.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 40375141 is about 6354.1436087013. The cubic root of 40375141 is about 343.0610011439.

The spelling of 40375141 in words is "forty million, three hundred seventy-five thousand, one hundred forty-one".

Divisors: 1 1013 39857 40375141