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5012120661 = 36412606407
BaseRepresentation
bin1001010101011111…
…01110010001010101
3110221022012002222120
410222233232101111
540231100330121
62145203050153
7235130215452
oct45257562125
913838162876
105012120661
112142236489
12b7a670959
1361b513792
14357938829
151e504cbc6
hex12abee455

5012120661 has 8 divisors (see below), whose sum is σ = 6693255744. Its totient is φ = 3336199680.

The previous prime is 5012120627. The next prime is 5012120671. The reversal of 5012120661 is 1660212105.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5012120661 - 211 = 5012118613 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5012120671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1301281 + ... + 1305126.

It is an arithmetic number, because the mean of its divisors is an integer number (836656968).

Almost surely, 25012120661 is an apocalyptic number.

It is an amenable number.

5012120661 is a deficient number, since it is larger than the sum of its proper divisors (1681135083).

5012120661 is a wasteful number, since it uses less digits than its factorization.

5012120661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2607051.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 5012120661 is about 70796.3322566925. The cubic root of 5012120661 is about 1711.3565675923.

Adding to 5012120661 its reverse (1660212105), we get a palindrome (6672332766).

The spelling of 5012120661 in words is "five billion, twelve million, one hundred twenty thousand, six hundred sixty-one".

Divisors: 1 3 641 1923 2606407 7819221 1670706887 5012120661