Search a number
-
+
1030223101220 = 22563298138909
BaseRepresentation
bin11101111110111100001…
…01001111110100100100
310122111012000112001012022
432333132011033310210
5113334344103214340
62105140012242312
7134300613605525
oct16773605176444
93574160461168
101030223101220
11367a080a01a5
121477b7770398
13761c3945aa1
1437c1236884c
151bbe9c5e3b5
hexefde14fd24

1030223101220 has 24 divisors (see below), whose sum is σ = 2163810612600. Its totient is φ = 412024078592.

The previous prime is 1030223101183. The next prime is 1030223101301. The reversal of 1030223101220 is 221013220301.

It can be written as a sum of positive squares in 4 ways, for example, as 309153792256 + 721069308964 = 556016^2 + 849158^2 .

It is a super-2 number, since 2×10302231012202 (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3942875 + ... + 4196034.

It is an arithmetic number, because the mean of its divisors is an integer number (90158775525).

Almost surely, 21030223101220 is an apocalyptic number.

1030223101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030223101220 is an abundant number, since it is smaller than the sum of its proper divisors (1133587511380).

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

1030223101220 is a wasteful number, since it uses less digits than its factorization.

1030223101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8145247 (or 8145245 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1030223101220 its reverse (221013220301), we get a palindrome (1251236321521).

The spelling of 1030223101220 in words is "one trillion, thirty billion, two hundred twenty-three million, one hundred one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 6329 12658 25316 31645 63290 126580 8138909 16277818 32555636 40694545 81389090 162778180 51511155061 103022310122 206044620244 257555775305 515111550610 1030223101220