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34128143 = 722321863
BaseRepresentation
bin1000001000110…
…0000100001111
32101012220000022
42002030010033
532214100033
63215252355
7563040650
oct202140417
971186008
1034128143
111829aa85
12b51a0bb
1370bbc8a
144765527
152ee2098
hex208c10f

34128143 has 8 divisors (see below), whose sum is σ = 39180288. Its totient is φ = 29120184.

The previous prime is 34128119. The next prime is 34128167. The reversal of 34128143 is 34182143.

It is an interprime number because it is at equal distance from previous prime (34128119) and next prime (34128167).

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 34128143 - 28 = 34127887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34128103) 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, 9371 + ... + 12492.

It is an arithmetic number, because the mean of its divisors is an integer number (4897536).

Almost surely, 234128143 is an apocalyptic number.

34128143 is a deficient number, since it is larger than the sum of its proper divisors (5052145).

34128143 is a wasteful number, since it uses less digits than its factorization.

34128143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22093.

The product of its digits is 2304, while the sum is 26.

The square root of 34128143 is about 5841.9297325456. The cubic root of 34128143 is about 324.3676635889.

The spelling of 34128143 in words is "thirty-four million, one hundred twenty-eight thousand, one hundred forty-three".

Divisors: 1 7 223 1561 21863 153041 4875449 34128143