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5081988512 = 25197806153
BaseRepresentation
bin1001011101110100…
…01111110110100000
3111010011122202122202
410232322033312200
540401442113022
62200140352332
7236636122016
oct45672176640
914104582582
105081988512
112178717207
12b99b456a8
1362cb370c3
14362d248b6
151eb24e592
hex12ee8fda0

5081988512 has 24 divisors (see below), whose sum is σ = 10055964996. Its totient is φ = 2528092672.

The previous prime is 5081988473. The next prime is 5081988521. The reversal of 5081988512 is 2158891805.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5064314896 + 17673616 = 71164^2 + 4204^2 .

It is a super-3 number, since 3×50819885123 (a number of 30 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396773 + ... + 409380.

Almost surely, 25081988512 is an apocalyptic number.

It is an amenable number.

5081988512 is a deficient number, since it is larger than the sum of its proper divisors (4973976484).

5081988512 is a wasteful number, since it uses less digits than its factorization.

5081988512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806360 (or 806352 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 47.

The square root of 5081988512 is about 71288.0671080371. The cubic root of 5081988512 is about 1719.2718785781.

The spelling of 5081988512 in words is "five billion, eighty-one million, nine hundred eighty-eight thousand, five hundred twelve".

Divisors: 1 2 4 8 16 32 197 394 788 1576 3152 6304 806153 1612306 3224612 6449224 12898448 25796896 158812141 317624282 635248564 1270497128 2540994256 5081988512