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5127078100 = 225251270781
BaseRepresentation
bin1001100011001100…
…10000000011010100
3111020022111112221111
410301212100003110
541000012444400
62204431024404
7241024305364
oct46146200324
914208445844
105127078100
1121a1113731
12bb106b104
13639293431
14368d009a4
152001a93ba
hex1319900d4

5127078100 has 18 divisors (see below), whose sum is σ = 11125759694. Its totient is φ = 2050831200.

The previous prime is 5127078083. The next prime is 5127078101. The reversal of 5127078100 is 18707215.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 994645444 + 4132432656 = 31538^2 + 64284^2 .

It is a super-3 number, since 3×51270781003 (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5127078101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25635291 + ... + 25635490.

Almost surely, 25127078100 is an apocalyptic number.

5127078100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5127078100 is an abundant number, since it is smaller than the sum of its proper divisors (5998681594).

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

5127078100 is a wasteful number, since it uses less digits than its factorization.

5127078100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51270795 (or 51270788 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 31.

The square root of 5127078100 is about 71603.6179253535. The cubic root of 5127078100 is about 1724.3416209048.

The spelling of 5127078100 in words is "five billion, one hundred twenty-seven million, seventy-eight thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 51270781 102541562 205083124 256353905 512707810 1025415620 1281769525 2563539050 5127078100