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5001551001 = 321095098421
BaseRepresentation
bin1001010100001110…
…11001110010011001
3110220120022010010200
410222013121302121
540220344113001
62144144332413
7234641324226
oct45207316231
913816263120
105001551001
112137277327
12b77014109
13619282845
1435638694d
151e4161086
hex12a1d9c99

5001551001 has 12 divisors (see below), whose sum is σ = 7290743460. Its totient is φ = 3303776160.

The previous prime is 5001550991. The next prime is 5001551017. The reversal of 5001551001 is 1001551005.

5001551001 is a `hidden beast` number, since 500 + 155 + 10 + 0 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2749953600 + 2251597401 = 52440^2 + 47451^2 .

It is not a de Polignac number, because 5001551001 - 214 = 5001534617 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5001551081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2548230 + ... + 2550191.

It is an arithmetic number, because the mean of its divisors is an integer number (607561955).

Almost surely, 25001551001 is an apocalyptic number.

It is an amenable number.

5001551001 is a deficient number, since it is larger than the sum of its proper divisors (2289192459).

5001551001 is a wasteful number, since it uses less digits than its factorization.

5001551001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5098536 (or 5098533 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 18.

The square root of 5001551001 is about 70721.6445015244. The cubic root of 5001551001 is about 1710.1527400244.

The spelling of 5001551001 in words is "five billion, one million, five hundred fifty-one thousand, one".

Divisors: 1 3 9 109 327 981 5098421 15295263 45885789 555727889 1667183667 5001551001