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5012720500 = 225339725253
BaseRepresentation
bin1001010101100100…
…00000101101110100
3110221100022120210211
410222302000231310
540231224024000
62145223555204
7235135264324
oct45262005564
913840276724
105012720500
112142606117
12b7a8bbb04
1361b693808
14357a53284
151e511a7ba
hex12ac80b74

5012720500 has 48 divisors (see below), whose sum is σ = 10975792464. Its totient is φ = 1999958400.

The previous prime is 5012720407. The next prime is 5012720527. The reversal of 5012720500 is 50272105.

It can be written as a sum of positive squares in 8 ways, for example, as 267715044 + 4745005456 = 16362^2 + 68884^2 .

It is a super-2 number, since 2×50127205002 = 50254733622240500000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185874 + ... + 211126.

It is an arithmetic number, because the mean of its divisors is an integer number (228662343).

Almost surely, 25012720500 is an apocalyptic number.

5012720500 is a gapful number since it is divisible by the number (50) 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 5012720500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5487896232).

5012720500 is an abundant number, since it is smaller than the sum of its proper divisors (5963071964).

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

5012720500 is a wasteful number, since it uses less digits than its factorization.

5012720500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25669 (or 25657 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 5012720500 is about 70800.5685005424. The cubic root of 5012720500 is about 1711.4248352666.

Adding to 5012720500 its reverse (50272105), we get a palindrome (5062992605).

The spelling of 5012720500 in words is "five billion, twelve million, seven hundred twenty thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 397 500 794 1588 1985 3970 7940 9925 19850 25253 39700 49625 50506 99250 101012 126265 198500 252530 505060 631325 1262650 2525300 3156625 6313250 10025441 12626500 20050882 40101764 50127205 100254410 200508820 250636025 501272050 1002544100 1253180125 2506360250 5012720500