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29628069 = 39876023
BaseRepresentation
bin111000100000…
…1011010100101
32001202021001220
41301001122211
530041044234
62535010553
7506556132
oct161013245
961667056
1029628069
11157a7009
129b09a59
1361a4903
143d13589
152903a49
hex1c416a5

29628069 has 4 divisors (see below), whose sum is σ = 39504096. Its totient is φ = 19752044.

The previous prime is 29628061. The next prime is 29628073. The reversal of 29628069 is 96082692.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 29628069 - 23 = 29628061 is a prime.

It is a super-2 number, since 2×296280692 = 1755644945337522, 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 29628069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29628061) 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, 4938009 + ... + 4938014.

It is an arithmetic number, because the mean of its divisors is an integer number (9876024).

Almost surely, 229628069 is an apocalyptic number.

It is an amenable number.

29628069 is a deficient number, since it is larger than the sum of its proper divisors (9876027).

29628069 is an equidigital number, since it uses as much as digits as its factorization.

29628069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9876026.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 29628069 is about 5443.1671846454. The cubic root of 29628069 is about 309.4338226280.

The spelling of 29628069 in words is "twenty-nine million, six hundred twenty-eight thousand, sixty-nine".

Divisors: 1 3 9876023 29628069