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40080469 = 11132411163
BaseRepresentation
bin1001100011100…
…1010001010101
32210102022001211
42120321101111
540230033334
63551021421
7664451452
oct230712125
983368054
1040080469
1120696060
121150a871
1383c4370
145474829
1537baa64
hex2639455

40080469 has 16 divisors (see below), whose sum is σ = 47323584. Its totient is φ = 33465600.

The previous prime is 40080457. The next prime is 40080517. The reversal of 40080469 is 96408004.

It is a cyclic number.

It is not a de Polignac number, because 40080469 - 211 = 40078421 is a prime.

It is a super-2 number, since 2×400804692 = 3212887990519922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40080469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40080409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33882 + ... + 35044.

It is an arithmetic number, because the mean of its divisors is an integer number (2957724).

Almost surely, 240080469 is an apocalyptic number.

It is an amenable number.

40080469 is a deficient number, since it is larger than the sum of its proper divisors (7243115).

40080469 is a wasteful number, since it uses less digits than its factorization.

40080469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 40080469 is about 6330.9137571128. The cubic root of 40080469 is about 342.2243691458.

The spelling of 40080469 in words is "forty million, eighty thousand, four hundred sixty-nine".

Divisors: 1 11 13 143 241 1163 2651 3133 12793 15119 34463 166309 280283 3083113 3643679 40080469