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60506005121 = 79765898799
BaseRepresentation
bin111000010110011100…
…000101111010000001
312210011202201112021122
4320112130011322001
51442404014130441
643443541402025
74241252362202
oct702634057201
9183152645248
1060506005121
112372a076211
12b887409315
1359235356c3
142cddb6d5a9
151891da534b
hexe16705e81

60506005121 has 4 divisors (see below), whose sum is σ = 61271904000. Its totient is φ = 59740106244.

The previous prime is 60506005111. The next prime is 60506005193. The reversal of 60506005121 is 12150060506.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12150060506 = 26075030253.

It is a cyclic number.

It is not a de Polignac number, because 60506005121 - 218 = 60505742977 is a prime.

It is a super-3 number, since 3×605060051213 (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (60506005111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 382949321 + ... + 382949478.

It is an arithmetic number, because the mean of its divisors is an integer number (15317976000).

Almost surely, 260506005121 is an apocalyptic number.

It is an amenable number.

60506005121 is a deficient number, since it is larger than the sum of its proper divisors (765898879).

60506005121 is an equidigital number, since it uses as much as digits as its factorization.

60506005121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765898878.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 60506005121 its reverse (12150060506), we get a palindrome (72656065627).

The spelling of 60506005121 in words is "sixty billion, five hundred six million, five thousand, one hundred twenty-one".

Divisors: 1 79 765898799 60506005121