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313213323232 = 2553295362539
BaseRepresentation
bin1001000111011001111…
…10000000011111100000
31002221110101010101200001
410203230332000133200
520112430102320412
6355515504305344
731425501214525
oct4435476003740
91087411111601
10313213323232
11110918834647
1250852612254
13236c7470c74
1411233d5b14c
1582326ec957
hex48ecf807e0

313213323232 has 48 divisors (see below), whose sum is σ = 628496230320. Its totient is φ = 153597330432.

The previous prime is 313213323191. The next prime is 313213323277. The reversal of 313213323232 is 232323312313.

It is a self number, because there is not a number n which added to its sum of digits gives 313213323232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4977019 + ... + 5039557.

It is an arithmetic number, because the mean of its divisors is an integer number (13093671465).

Almost surely, 2313213323232 is an apocalyptic number.

313213323232 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 313213323232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314248115160).

313213323232 is an abundant number, since it is smaller than the sum of its proper divisors (315282907088).

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

313213323232 is a wasteful number, since it uses less digits than its factorization.

313213323232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65555 (or 65547 counting only the distinct ones).

The product of its digits is 11664, while the sum is 28.

Adding to 313213323232 its reverse (232323312313), we get a palindrome (545536635545).

The spelling of 313213323232 in words is "three hundred thirteen billion, two hundred thirteen million, three hundred twenty-three thousand, two hundred thirty-two".

Divisors: 1 2 4 8 16 32 53 106 212 424 848 1696 2953 5906 11812 23624 47248 62539 94496 125078 156509 250156 313018 500312 626036 1000624 1252072 2001248 2504144 3314567 5008288 6629134 13258268 26516536 53033072 106066144 184677667 369355334 738710668 1477421336 2954842672 5909685344 9787916351 19575832702 39151665404 78303330808 156606661616 313213323232