Search a number
-
+
101110000020 = 223517187152981
BaseRepresentation
bin101111000101010100…
…0000010100110010100
3100122222112022012000120
41132022220002212110
53124033130000040
6114241014111540
710206412551111
oct1361250024624
9318875265016
10101110000020
1139975a60597
121771964b5b0
1396c4781ca3
144c72643908
15296b8e87d0
hex178aa02994

101110000020 has 96 divisors (see below), whose sum is σ = 299927287296. Its totient is φ = 25362585600.

The previous prime is 101109999979. The next prime is 101110000021. The reversal of 101110000020 is 20000011101.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a junction number, because it is equal to n+sod(n) for n = 101109999963 and 101110000008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101110000021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1881930 + ... + 1934910.

It is an arithmetic number, because the mean of its divisors is an integer number (3124242576).

Almost surely, 2101110000020 is an apocalyptic number.

101110000020 is a gapful number since it is divisible by the number (10) 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 101110000020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149963643648).

101110000020 is an abundant number, since it is smaller than the sum of its proper divisors (198817287276).

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

101110000020 is a wasteful number, since it uses less digits than its factorization.

101110000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54881 (or 54879 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 6.

Adding to 101110000020 its reverse (20000011101), we get a palindrome (121110011121).

The spelling of 101110000020 in words is "one hundred one billion, one hundred ten million, twenty", and thus it is an aban number.

Divisors: 1 2 3 4 5 6 10 12 15 17 20 30 34 51 60 68 85 102 170 204 255 340 510 1020 1871 3742 5613 7484 9355 11226 18710 22452 28065 31807 37420 52981 56130 63614 95421 105962 112260 127228 158943 159035 190842 211924 264905 317886 318070 381684 477105 529810 635772 636140 794715 900677 954210 1059620 1589430 1801354 1908420 2702031 3178860 3602708 4503385 5404062 9006770 10808124 13510155 18013540 27020310 54040620 99127451 198254902 297382353 396509804 495637255 594764706 991274510 1189529412 1486911765 1685166667 1982549020 2973823530 3370333334 5055500001 5947647060 6740666668 8425833335 10111000002 16851666670 20222000004 25277500005 33703333340 50555000010 101110000020