Search a number
-
+
5031615420 = 223251329531399
BaseRepresentation
bin1001010111110100…
…00101101110111100
3110222122212112202200
410223322011232330
540301043143140
62151140551500
7235455011466
oct45372055674
913878775680
105031615420
112152241157
12b850b2590
1362257ac40
1435a371136
151e6aee030
hex12be85bbc

5031615420 has 288 divisors, whose sum is σ = 17336592000. Its totient is φ = 1172441088.

The previous prime is 5031615389. The next prime is 5031615431. The reversal of 5031615420 is 245161305.

5031615420 is a `hidden beast` number, since 5 + 0 + 3 + 1 + 615 + 42 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3595881 + ... + 3597279.

It is an arithmetic number, because the mean of its divisors is an integer number (60196500).

Almost surely, 25031615420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5031615420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8668296000).

5031615420 is an abundant number, since it is smaller than the sum of its proper divisors (12304976580).

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

5031615420 is a wasteful number, since it uses less digits than its factorization.

5031615420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509 (or 1504 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 5031615420 is about 70933.8806213223. The cubic root of 5031615420 is about 1713.5724840749.

Adding to 5031615420 its reverse (245161305), we get a palindrome (5276776725).

The spelling of 5031615420 in words is "five billion, thirty-one million, six hundred fifteen thousand, four hundred twenty".