Search a number
-
+
29107215800 = 23521319158613
BaseRepresentation
bin11011000110111011…
…001101110110111000
32210010112100202200122
4123012323031312320
5434102421401200
621212140352412
72050206152315
oct330673156670
983115322618
1029107215800
11113872a0053
125783b45708
13298b426c20
1415a1a49d0c
15b55575385
hex6c6ecddb8

29107215800 has 96 divisors (see below), whose sum is σ = 73262810880. Its totient is φ = 10690828800.

The previous prime is 29107215799. The next prime is 29107215821. The reversal of 29107215800 is 851270192.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 467294 + ... + 525906.

It is an arithmetic number, because the mean of its divisors is an integer number (763154280).

Almost surely, 229107215800 is an apocalyptic number.

29107215800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29107215800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36631405440).

29107215800 is an abundant number, since it is smaller than the sum of its proper divisors (44155595080).

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

29107215800 is a wasteful number, since it uses less digits than its factorization.

29107215800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58833 (or 58824 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 35.

Adding to 29107215800 its reverse (851270192), we get a palindrome (29958485992).

The spelling of 29107215800 in words is "twenty-nine billion, one hundred seven million, two hundred fifteen thousand, eight hundred".

Divisors: 1 2 4 5 8 10 13 20 25 26 40 50 52 65 100 104 130 191 200 260 325 382 520 650 764 955 1300 1528 1910 2483 2600 3820 4775 4966 7640 9550 9932 12415 19100 19864 24830 38200 49660 58613 62075 99320 117226 124150 234452 248300 293065 468904 496600 586130 761969 1172260 1465325 1523938 2344520 2930650 3047876 3809845 5861300 6095752 7619690 11195083 11722600 15239380 19049225 22390166 30478760 38098450 44780332 55975415 76196900 89560664 111950830 145536079 152393800 223901660 279877075 291072158 447803320 559754150 582144316 727680395 1119508300 1164288632 1455360790 2239016600 2910721580 3638401975 5821443160 7276803950 14553607900 29107215800