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40969005 = 3571179449
BaseRepresentation
bin1001110001001…
…0001100101101
32212002102220120
42130102030231
540442002010
64022035153
71005142110
oct234221455
985072816
1040969005
1121142690
1211878ab9
13864591c
145626577
1538e3e70
hex271232d

40969005 has 64 divisors (see below), whose sum is σ = 82944000. Its totient is φ = 16773120.

The previous prime is 40968989. The next prime is 40969009. The reversal of 40969005 is 50096904.

It is a happy number.

It is not a de Polignac number, because 40969005 - 24 = 40968989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40969009) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 91021 + ... + 91469.

It is an arithmetic number, because the mean of its divisors is an integer number (1296000).

Almost surely, 240969005 is an apocalyptic number.

It is an amenable number.

40969005 is an abundant number, since it is smaller than the sum of its proper divisors (41974995).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40969005 is a wasteful number, since it uses less digits than its factorization.

40969005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 40969005 is about 6400.7034769625. The cubic root of 40969005 is about 344.7348098619.

The spelling of 40969005 in words is "forty million, nine hundred sixty-nine thousand, five".

Divisors: 1 3 5 7 11 15 21 33 35 55 77 79 105 165 231 237 385 395 449 553 869 1155 1185 1347 1659 2245 2607 2765 3143 4345 4939 6083 6735 8295 9429 13035 14817 15715 18249 24695 30415 34573 35471 47145 74085 91245 103719 106413 172865 177355 248297 390181 518595 532065 744891 1170543 1241485 1950905 2731267 3724455 5852715 8193801 13656335 40969005