Search a number
-
+
70210220001220 = 225131589091699333
BaseRepresentation
bin11111111011011000101110…
…01110010000011111000100
3100012121000211221122022100201
433331230113032100133010
533200311012310014340
6405154044011420244
720534343463121665
oct1775542716203704
9305530757568321
1070210220001220
1120409a948a5522
127a5b264754684
133023a45481480
14134a29adb736c
1581b4e02d379a
hex3fdb173907c4

70210220001220 has 48 divisors (see below), whose sum is σ = 158784205572720. Its totient is φ = 25923595147776.

The previous prime is 70210220001211. The next prime is 70210220001241. The reversal of 70210220001220 is 2210002201207.

70210220001220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 6523978507264 + 63686241493956 = 2554208^2 + 7980366^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40466674 + ... + 42166006.

It is an arithmetic number, because the mean of its divisors is an integer number (3308004282765).

Almost surely, 270210220001220 is an apocalyptic number.

It is an amenable number.

70210220001220 is an abundant number, since it is smaller than the sum of its proper divisors (88573985571500).

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

70210220001220 is a wasteful number, since it uses less digits than its factorization.

70210220001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858264 (or 1858262 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

Adding to 70210220001220 its reverse (2210002201207), we get a palindrome (72420222202427).

The spelling of 70210220001220 in words is "seventy trillion, two hundred ten billion, two hundred twenty million, one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 158909 317818 635636 794545 1589090 1699333 2065817 3178180 3398666 4131634 6797332 8263268 8496665 10329085 16993330 20658170 22091329 33986660 41316340 44182658 88365316 110456645 220913290 441826580 270039307697 540078615394 1080157230788 1350196538485 2700393076970 3510511000061 5400786153940 7021022000122 14042044000244 17552555000305 35105110000610 70210220001220