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50000002000001 = 263327212209
BaseRepresentation
bin10110101111001100010000…
…10110111010010010000001
320120000221202002220212121222
423113212020112322102001
523023200001003000001
6254201403412124425
713350244442421044
oct1327461026722201
9216027662825558
1050000002000001
1114a279776a4789
125736403606715
1321b8c97c73401
14c4c0279a8c5b
155ba934e0761b
hex2d79885ba481

50000002000001 has 6 divisors (see below), whose sum is σ = 50019005893830. Its totient is φ = 49981005323648.

The previous prime is 50000001999991. The next prime is 50000002000019. The reversal of 50000002000001 is 10000020000005.

It can be written as a sum of positive squares in 3 ways, for example, as 1000002000001 + 49000000000000 = 1000001^2 + 7000000^2 .

It is a de Polignac number, because none of the positive numbers 2k-50000002000001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50000002000061) 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, 3326585 + ... + 10538793.

It is an arithmetic number, because the mean of its divisors is an integer number (8336500982305).

Almost surely, 250000002000001 is an apocalyptic number.

It is an amenable number.

50000002000001 is a deficient number, since it is larger than the sum of its proper divisors (19003893829).

50000002000001 is an frugal number, since it uses more digits than its factorization.

50000002000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7217475 (or 7214842 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 8.

Adding to 50000002000001 its reverse (10000020000005), we get a palindrome (60000022000006).

The spelling of 50000002000001 in words is "fifty trillion, two million, one", and thus it is an aban number and an uban number.

Divisors: 1 2633 6932689 7212209 18989746297 50000002000001