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34105830 = 23511181571
BaseRepresentation
bin1000001000011…
…0100111100110
32101011202101220
42002012213212
532212341310
63215001210
7562615623
oct202064746
971152356
1034105830
1118285240
12b509206
1370b1a85
14475b34a
152eda670
hex20869e6

34105830 has 64 divisors (see below), whose sum is σ = 89945856. Its totient is φ = 8208000.

The previous prime is 34105811. The next prime is 34105847. The reversal of 34105830 is 3850143.

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

It is a self number, because there is not a number n which added to its sum of digits gives 34105830.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59445 + ... + 60015.

It is an arithmetic number, because the mean of its divisors is an integer number (1405404).

Almost surely, 234105830 is an apocalyptic number.

34105830 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 34105830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44972928).

34105830 is an abundant number, since it is smaller than the sum of its proper divisors (55840026).

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

34105830 is a wasteful number, since it uses less digits than its factorization.

34105830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 34105830 is about 5840.0196917476. The cubic root of 34105830 is about 324.2969575876.

Adding to 34105830 its reverse (3850143), we get a palindrome (37955973).

The spelling of 34105830 in words is "thirty-four million, one hundred five thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 181 330 362 543 571 905 1086 1142 1713 1810 1991 2715 2855 3426 3982 5430 5710 5973 6281 8565 9955 11946 12562 17130 18843 19910 29865 31405 37686 59730 62810 94215 103351 188430 206702 310053 516755 620106 1033510 1136861 1550265 2273722 3100530 3410583 5684305 6821166 11368610 17052915 34105830