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388315130112 = 2834713732819
BaseRepresentation
bin1011010011010010110…
…00101010100100000000
31101010022100102110220000
411221221120222210000
522330232133130422
6454220044520000
740024545100650
oct5515130524400
91333270373800
10388315130112
1113a757849738
1263311b50000
132a805871250
1414b1a376360
15a17ab74cac
hex5a6962a900

388315130112 has 720 divisors, whose sum is σ = 1445124024960. Its totient is φ = 100974034944.

The previous prime is 388315130111. The next prime is 388315130123. The reversal of 388315130112 is 211031513883.

It is a happy number.

388315130112 is a `hidden beast` number, since 38 + 8 + 315 + 1 + 301 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (388315130111) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 137747839 + ... + 137750657.

Almost surely, 2388315130112 is an apocalyptic number.

388315130112 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 388315130112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (722562012480).

388315130112 is an abundant number, since it is smaller than the sum of its proper divisors (1056808894848).

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

388315130112 is a wasteful number, since it uses less digits than its factorization.

388315130112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2940 (or 2917 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

Adding to 388315130112 its reverse (211031513883), we get a palindrome (599346643995).

The spelling of 388315130112 in words is "three hundred eighty-eight billion, three hundred fifteen million, one hundred thirty thousand, one hundred twelve".