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29824728 = 2333140087
BaseRepresentation
bin111000111000…
…1011011011000
32002010020211120
41301301123120
530113342403
62543125240
7511335363
oct161613330
962106746
1029824728
111592083a
129ba3820
13624328b
143d650da
152941e53
hex1c716d8

29824728 has 32 divisors (see below), whose sum is σ = 76968960. Its totient is φ = 9620640.

The previous prime is 29824723. The next prime is 29824733. The reversal of 29824728 is 82742892.

It is an interprime number because it is at equal distance from previous prime (29824723) and next prime (29824733).

It is a self number, because there is not a number n which added to its sum of digits gives 29824728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29824723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19300 + ... + 20787.

It is an arithmetic number, because the mean of its divisors is an integer number (2405280).

Almost surely, 229824728 is an apocalyptic number.

It is an amenable number.

29824728 is an abundant number, since it is smaller than the sum of its proper divisors (47144232).

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

29824728 is a wasteful number, since it uses less digits than its factorization.

29824728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40127 (or 40123 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 29824728 is about 5461.2020654797. The cubic root of 29824728 is about 310.1169451251.

The spelling of 29824728 in words is "twenty-nine million, eight hundred twenty-four thousand, seven hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 24 31 62 93 124 186 248 372 744 40087 80174 120261 160348 240522 320696 481044 962088 1242697 2485394 3728091 4970788 7456182 9941576 14912364 29824728