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5120031384 = 2335131910663
BaseRepresentation
bin1001100010010110…
…10111101010011000
3111012211020112200000
410301023113222120
540441212001014
62204020013000
7240610356126
oct46113275230
914184215600
105120031384
1121981403a6
12baa831160
13637996b90
14367dc8916
151ee766509
hex1312d7a98

5120031384 has 192 divisors, whose sum is σ = 16303123200. Its totient is φ = 1492338816.

The previous prime is 5120031353. The next prime is 5120031409. The reversal of 5120031384 is 4831300215.

It is a happy number.

5120031384 is a `hidden beast` number, since 51 + 200 + 31 + 384 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 474837 + ... + 485499.

It is an arithmetic number, because the mean of its divisors is an integer number (84912100).

Almost surely, 25120031384 is an apocalyptic number.

5120031384 is a gapful number since it is divisible by the number (54) 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 5120031384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8151561600).

5120031384 is an abundant number, since it is smaller than the sum of its proper divisors (11183091816).

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

5120031384 is a wasteful number, since it uses less digits than its factorization.

5120031384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10716 (or 10700 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 5120031384 is about 71554.3945820241. The cubic root of 5120031384 is about 1723.5512736213.

Adding to 5120031384 its reverse (4831300215), we get a palindrome (9951331599).

The spelling of 5120031384 in words is "five billion, one hundred twenty million, thirty-one thousand, three hundred eighty-four".