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29450143 = 238315427
BaseRepresentation
bin111000001010…
…1111110011111
32001102020000001
41300111332133
530014401033
62531115131
7505215322
oct160257637
961366001
1029450143
1115695368
129a42aa7
136141928
143ca87b9
1528bae7d
hex1c15f9f

29450143 has 8 divisors (see below), whose sum is σ = 31102848. Its totient is φ = 27828504.

The previous prime is 29450131. The next prime is 29450149. The reversal of 29450143 is 34105492.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29450143 - 29 = 29449631 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29450149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5805 + ... + 9622.

It is an arithmetic number, because the mean of its divisors is an integer number (3887856).

Almost surely, 229450143 is an apocalyptic number.

29450143 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

29450143 is a deficient number, since it is larger than the sum of its proper divisors (1652705).

29450143 is a wasteful number, since it uses less digits than its factorization.

29450143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15533.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 29450143 is about 5426.7985958574. The cubic root of 29450143 is about 308.8131622923.

The spelling of 29450143 in words is "twenty-nine million, four hundred fifty thousand, one hundred forty-three".

Divisors: 1 23 83 1909 15427 354821 1280441 29450143