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213314402020 = 22510665720101
BaseRepresentation
bin1100011010101010000…
…1110111011011100100
3202101121020200101110011
43012222201313123210
511443331441331040
6241554551540004
721261062333416
oct3065241673344
9671536611404
10213314402020
1182514467535
123541268a604
1317166892075
14a4784cc9b6
1558372cc3ea
hex31aa8776e4

213314402020 has 12 divisors (see below), whose sum is σ = 447960244284. Its totient is φ = 85325760800.

The previous prime is 213314402003. The next prime is 213314402027. The reversal of 213314402020 is 20204413312.

It can be written as a sum of positive squares in 2 ways, for example, as 152274770176 + 61039631844 = 390224^2 + 247062^2 .

It is a junction number, because it is equal to n+sod(n) for n = 213314401982 and 213314402000.

It is not an unprimeable number, because it can be changed into a prime (213314402027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5332860031 + ... + 5332860070.

It is an arithmetic number, because the mean of its divisors is an integer number (37330020357).

Almost surely, 2213314402020 is an apocalyptic number.

213314402020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213314402020 is an abundant number, since it is smaller than the sum of its proper divisors (234645842264).

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

213314402020 is a wasteful number, since it uses less digits than its factorization.

213314402020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10665720110 (or 10665720108 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 213314402020 its reverse (20204413312), we get a palindrome (233518815332).

The spelling of 213314402020 in words is "two hundred thirteen billion, three hundred fourteen million, four hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 10665720101 21331440202 42662880404 53328600505 106657201010 213314402020