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18829707 = 3133713049
BaseRepresentation
bin100011111010…
…1000110001011
31022102122111120
41013311012023
514310022312
61511330323
7316023051
oct107650613
938378446
1018829707
11a6a1046
1263809a3
133b93850
1427021d1
1519be28c
hex11f518b

18829707 has 16 divisors (see below), whose sum is σ = 27770400. Its totient is φ = 11273472.

The previous prime is 18829687. The next prime is 18829717. The reversal of 18829707 is 70792881.

It is not a de Polignac number, because 18829707 - 211 = 18827659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18829717) 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 15 ways as a sum of consecutive naturals, for example, 5082 + ... + 7967.

It is an arithmetic number, because the mean of its divisors is an integer number (1735650).

Almost surely, 218829707 is an apocalyptic number.

18829707 is a deficient number, since it is larger than the sum of its proper divisors (8940693).

18829707 is a wasteful number, since it uses less digits than its factorization.

18829707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13102.

The product of its (nonzero) digits is 56448, while the sum is 42.

The square root of 18829707 is about 4339.3210298387. The cubic root of 18829707 is about 266.0405604571.

The spelling of 18829707 in words is "eighteen million, eight hundred twenty-nine thousand, seven hundred seven".

Divisors: 1 3 13 37 39 111 481 1443 13049 39147 169637 482813 508911 1448439 6276569 18829707