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40544249 = 314992621
BaseRepresentation
bin1001101010101…
…0011111111001
32211021212020212
42122222133321
540334403444
64005000505
71001422544
oct232523771
984255225
1040544249
1120982549
12116b3135
1385274a5
14555585b
15385d19e
hex26aa7f9

40544249 has 8 divisors (see below), whose sum is σ = 41952000. Its totient is φ = 39142800.

The previous prime is 40544219. The next prime is 40544261. The reversal of 40544249 is 94244504.

40544249 = T127 + T128 + ... + T625.

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 40544249 - 224 = 23767033 is a prime.

It is a super-2 number, since 2×405442492 = 3287672253948002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40544209) 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, 14159 + ... + 16779.

It is an arithmetic number, because the mean of its divisors is an integer number (5244000).

Almost surely, 240544249 is an apocalyptic number.

It is an amenable number.

40544249 is a deficient number, since it is larger than the sum of its proper divisors (1407751).

40544249 is a wasteful number, since it uses less digits than its factorization.

40544249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3151.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 40544249 is about 6367.4366113845. The cubic root of 40544249 is about 343.5392950490.

The spelling of 40544249 in words is "forty million, five hundred forty-four thousand, two hundred forty-nine".

Divisors: 1 31 499 2621 15469 81251 1307879 40544249