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34143123 = 3717591621
BaseRepresentation
bin1000001000111…
…1101110010011
32101020122120010
42002033232103
532220034443
63215450003
7563132430
oct202175623
971218503
1034143123
1118300263
12b526903
1370c5a41
14476ab87
152ee6733
hex208fb93

34143123 has 32 divisors (see below), whose sum is σ = 56056320. Its totient is φ = 18040320.

The previous prime is 34143113. The next prime is 34143139. The reversal of 34143123 is 32134143.

34143123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2k-34143123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 34143123.

It is not an unprimeable number, because it can be changed into a prime (34143113) 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 31 ways as a sum of consecutive naturals, for example, 20253 + ... + 21873.

It is an arithmetic number, because the mean of its divisors is an integer number (1751760).

Almost surely, 234143123 is an apocalyptic number.

34143123 is a deficient number, since it is larger than the sum of its proper divisors (21913197).

34143123 is a wasteful number, since it uses less digits than its factorization.

34143123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1707.

The product of its digits is 864, while the sum is 21.

The square root of 34143123 is about 5843.2117024801. The cubic root of 34143123 is about 324.4151153049.

Adding to 34143123 its reverse (32134143), we get a palindrome (66277266).

The spelling of 34143123 in words is "thirty-four million, one hundred forty-three thousand, one hundred twenty-three".

Divisors: 1 3 7 17 21 51 59 119 177 357 413 1003 1239 1621 3009 4863 7021 11347 21063 27557 34041 82671 95639 192899 286917 578697 669473 1625863 2008419 4877589 11381041 34143123