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40044141 = 3247137691
BaseRepresentation
bin1001100011000…
…0011001101101
32210100110020100
42120300121231
540222403031
63550141313
7664240524
oct230603155
983313210
1040044141
1120670835
12114b1839
1383b0977
1454654bb
1537aede6
hex263066d

40044141 has 24 divisors (see below), whose sum is σ = 59589504. Its totient is φ = 25899840.

The previous prime is 40044139. The next prime is 40044209. The reversal of 40044141 is 14144004.

It is not a de Polignac number, because 40044141 - 21 = 40044139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40044131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57606 + ... + 58296.

It is an arithmetic number, because the mean of its divisors is an integer number (2482896).

Almost surely, 240044141 is an apocalyptic number.

It is an amenable number.

40044141 is a deficient number, since it is larger than the sum of its proper divisors (19545363).

40044141 is a wasteful number, since it uses less digits than its factorization.

40044141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881 (or 878 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 40044141 is about 6328.0440105928. The cubic root of 40044141 is about 342.1209431696.

Adding to 40044141 its reverse (14144004), we get a palindrome (54188145).

The spelling of 40044141 in words is "forty million, forty-four thousand, one hundred forty-one".

Divisors: 1 3 9 47 137 141 411 423 691 1233 2073 6219 6439 19317 32477 57951 94667 97431 284001 292293 852003 4449349 13348047 40044141