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29942065 = 529375581
BaseRepresentation
bin111001000111…
…0000100110001
32002100012210101
41302032010301
530131121230
62545432401
7512334436
oct162160461
962305711
1029942065
11159a0a0a
12a03b701
1362847ca
143d95b8d
152966aca
hex1c8e131

29942065 has 16 divisors (see below), whose sum is σ = 38180880. Its totient is φ = 22498560.

The previous prime is 29942053. The next prime is 29942069. The reversal of 29942065 is 56024992.

It can be written as a sum of positive squares in 8 ways, for example, as 163216 + 29778849 = 404^2 + 5457^2 .

It is not a de Polignac number, because 29942065 - 27 = 29941937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (29942069) 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 15 ways as a sum of consecutive naturals, for example, 2575 + ... + 8155.

It is an arithmetic number, because the mean of its divisors is an integer number (2386305).

Almost surely, 229942065 is an apocalyptic number.

It is an amenable number.

29942065 is a deficient number, since it is larger than the sum of its proper divisors (8238815).

29942065 is a wasteful number, since it uses less digits than its factorization.

29942065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5652.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 29942065 is about 5471.9343015062. The cubic root of 29942065 is about 310.5231022387.

The spelling of 29942065 in words is "twenty-nine million, nine hundred forty-two thousand, sixty-five".

Divisors: 1 5 29 37 145 185 1073 5365 5581 27905 161849 206497 809245 1032485 5988413 29942065