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5087240640 = 26345414787
BaseRepresentation
bin1001011110011100…
…10010000111000000
3111010112112121020000
410233032102013000
540404313200030
62200445120000
7240031555236
oct45716220700
914115477200
105087240640
112180684209
12b9b859000
13630c55881
143638d0956
151eb93a860
hex12f3921c0

5087240640 has 280 divisors, whose sum is σ = 18541453392. Its totient is φ = 1323233280.

The previous prime is 5087240621. The next prime is 5087240659. The reversal of 5087240640 is 460427805.

5087240640 is a `hidden beast` number, since 5 + 0 + 8 + 7 + 2 + 4 + 0 + 640 = 666.

It is an interprime number because it is at equal distance from previous prime (5087240621) and next prime (5087240659).

It is a super-3 number, since 3×50872406403 (a number of 30 digits) contains 333 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 5087240595 and 5087240604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1060327 + ... + 1065113.

Almost surely, 25087240640 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 5087240640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9270726696).

5087240640 is an abundant number, since it is smaller than the sum of its proper divisors (13454212752).

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

5087240640 is a wasteful number, since it uses less digits than its factorization.

5087240640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4857 (or 4838 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 5087240640 is about 71324.8949526040. The cubic root of 5087240640 is about 1719.8639517414.

The spelling of 5087240640 in words is "five billion, eighty-seven million, two hundred forty thousand, six hundred forty".