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29404880 = 245367561
BaseRepresentation
bin111000000101…
…0111011010000
32001022220220122
41300022323100
530011424010
62530125412
7504636341
oct160127320
961286818
1029404880
111566435a
129a20868
13612714b
143c960c8
1528ac855
hex1c0aed0

29404880 has 20 divisors (see below), whose sum is σ = 68366532. Its totient is φ = 11761920.

The previous prime is 29404873. The next prime is 29404889. The reversal of 29404880 is 8840492.

It can be written as a sum of positive squares in 2 ways, for example, as 11999296 + 17405584 = 3464^2 + 4172^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 29404880.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29404889) 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, 183701 + ... + 183860.

Almost surely, 229404880 is an apocalyptic number.

29404880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29404880 is an abundant number, since it is smaller than the sum of its proper divisors (38961652).

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

29404880 is a wasteful number, since it uses less digits than its factorization.

29404880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367574 (or 367568 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 29404880 is about 5422.6266697976. The cubic root of 29404880 is about 308.6548724295.

The spelling of 29404880 in words is "twenty-nine million, four hundred four thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 367561 735122 1470244 1837805 2940488 3675610 5880976 7351220 14702440 29404880