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313428124672 = 21013219229173
BaseRepresentation
bin1001000111110011100…
…01011010010000000000
31002222000100022102211221
410203321301122100000
520113400044442142
6355553100244424
731434020050015
oct4437161322000
91088010272757
10313428124672
11110a190070a3
12508b2540714
132372cb0b400
14112546b370c
1582464cc767
hex48f9c5a400

313428124672 has 396 divisors, whose sum is σ = 745013960820. Its totient is φ = 131554934784.

The previous prime is 313428124657. The next prime is 313428124679. The reversal of 313428124672 is 276421824313.

It can be written as a sum of positive squares in 6 ways, for example, as 5962310656 + 307465814016 = 77216^2 + 554496^2 .

It is not an unprimeable number, because it can be changed into a prime (313428124679) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1811723178 + ... + 1811723350.

Almost surely, 2313428124672 is an apocalyptic number.

313428124672 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 313428124672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372506980410).

313428124672 is an abundant number, since it is smaller than the sum of its proper divisors (431585836148).

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

313428124672 is a wasteful number, since it uses less digits than its factorization.

313428124672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 236 counting only the distinct ones).

The product of its digits is 387072, while the sum is 43.

Adding to 313428124672 its reverse (276421824313), we get a palindrome (589849948985).

The spelling of 313428124672 in words is "three hundred thirteen billion, four hundred twenty-eight million, one hundred twenty-four thousand, six hundred seventy-two".