Search a number
-
+
20200313120 = 255132747053
BaseRepresentation
bin10010110100000010…
…000101000100100000
31221010210110020012012
4102310002011010200
5312332240004440
613140242452052
71313403554111
oct226402050440
957123406165
1020200313120
118626606259
123ab9064028
131b9c041600
14d98b4a208
157d3637e65
hex4b4085120

20200313120 has 72 divisors (see below), whose sum is σ = 51676713396. Its totient is φ = 7458567168.

The previous prime is 20200313047. The next prime is 20200313123. The reversal of 20200313120 is 2131300202.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 500506384 + 19699806736 = 22372^2 + 140356^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20200313095 and 20200313104.

It is not an unprimeable number, because it can be changed into a prime (20200313123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 346487 + ... + 400566.

Almost surely, 220200313120 is an apocalyptic number.

20200313120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20200313120 is an abundant number, since it is smaller than the sum of its proper divisors (31476400276).

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

20200313120 is a wasteful number, since it uses less digits than its factorization.

20200313120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747094 (or 747073 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20200313120 its reverse (2131300202), we get a palindrome (22331613322).

The spelling of 20200313120 in words is "twenty billion, two hundred million, three hundred thirteen thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 40 52 65 80 104 130 160 169 208 260 338 416 520 676 845 1040 1352 1690 2080 2704 3380 5408 6760 13520 27040 747053 1494106 2988212 3735265 5976424 7470530 9711689 11952848 14941060 19423378 23905696 29882120 38846756 48558445 59764240 77693512 97116890 119528480 126251957 155387024 194233780 252503914 310774048 388467560 505007828 631259785 776935120 1010015656 1262519570 1553870240 2020031312 2525039140 4040062624 5050078280 10100156560 20200313120