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1312410220 = 225115965501
BaseRepresentation
bin100111000111001…
…1100101001101100
310101110112100100221
41032032130221230
510141434111340
6334121301124
744344205602
oct11616345154
93343470327
101312410220
11613904250
123076347a4
1317bb918c4
14c6431872
157a34244a
hex4e39ca6c

1312410220 has 24 divisors (see below), whose sum is σ = 3006613008. Its totient is φ = 477240000.

The previous prime is 1312410163. The next prime is 1312410223. The reversal of 1312410220 is 220142131.

It is a junction number, because it is equal to n+sod(n) for n = 1312410194 and 1312410203.

It is not an unprimeable number, because it can be changed into a prime (1312410223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2982531 + ... + 2982970.

It is an arithmetic number, because the mean of its divisors is an integer number (125275542).

Almost surely, 21312410220 is an apocalyptic number.

1312410220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312410220 is an abundant number, since it is smaller than the sum of its proper divisors (1694202788).

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

1312410220 is a wasteful number, since it uses less digits than its factorization.

1312410220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5965521 (or 5965519 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1312410220 is about 36227.2027625650. The cubic root of 1312410220 is about 1094.8548197533.

Adding to 1312410220 its reverse (220142131), we get a palindrome (1532552351).

The spelling of 1312410220 in words is "one billion, three hundred twelve million, four hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 5965501 11931002 23862004 29827505 59655010 65620511 119310020 131241022 262482044 328102555 656205110 1312410220