Search a number
-
+
1210332020020 = 225891664940841
BaseRepresentation
bin10001100111001101011…
…010001111110100110100
311021201002010020002221121
4101213031122033310310
5124312224444120040
62324004023353324
7153305104265254
oct21471532176464
94251063202847
101210332020020
11427331965712
121766a18b2844
138a198004516
144281a7d7964
152173bccec4a
hex119cd68fd34

1210332020020 has 48 divisors (see below), whose sum is σ = 2570472954000. Its totient is φ = 478652641280.

The previous prime is 1210332020017. The next prime is 1210332020089. The reversal of 1210332020020 is 200202330121.

It can be written as a sum of positive squares in 8 ways, for example, as 28454291856 + 1181877728164 = 168684^2 + 1087142^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1210332019976 and 1210332020003.

It is a congruent number.

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, 29614800 + ... + 29655640.

It is an arithmetic number, because the mean of its divisors is an integer number (53551519875).

Almost surely, 21210332020020 is an apocalyptic number.

1210332020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210332020020 is an abundant number, since it is smaller than the sum of its proper divisors (1360140933980).

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

1210332020020 is a wasteful number, since it uses less digits than its factorization.

1210332020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57588 (or 57586 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 1210332020020 its reverse (200202330121), we get a palindrome (1410534350141).

The spelling of 1210332020020 in words is "one trillion, two hundred ten billion, three hundred thirty-two million, twenty thousand, twenty".

Divisors: 1 2 4 5 10 20 89 178 356 445 890 1780 16649 33298 40841 66596 81682 83245 163364 166490 204205 332980 408410 816820 1481761 2963522 3634849 5927044 7269698 7408805 14539396 14817610 18174245 29635220 36348490 72696980 679961809 1359923618 2719847236 3399809045 6799618090 13599236180 60516601001 121033202002 242066404004 302583005005 605166010010 1210332020020