Search a number
-
+
5151709780761 = 361127271817951
BaseRepresentation
bin100101011110111100111…
…0101001101101100011001
3200020111110111211111120010
41022331321311031230121
51133401200200441021
614542355055352133
71041125112423015
oct112757165155431
920214414744503
105151709780761
111706911959265
126b2529222649
132b4a5b935acb
1413b4b6247545
158e01b487976
hex4af79d4db19

5151709780761 has 32 divisors (see below), whose sum is σ = 7062498574336. Its totient is φ = 3339199080000.

The previous prime is 5151709780759. The next prime is 5151709780781. The reversal of 5151709780761 is 1670879071515.

It is not a de Polignac number, because 5151709780761 - 21 = 5151709780759 is a prime.

It is a super-2 number, since 2×51517097807612 (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5151709780781) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5889336 + ... + 6707286.

It is an arithmetic number, because the mean of its divisors is an integer number (220703080448).

Almost surely, 25151709780761 is an apocalyptic number.

It is an amenable number.

5151709780761 is a deficient number, since it is larger than the sum of its proper divisors (1910788793575).

5151709780761 is a wasteful number, since it uses less digits than its factorization.

5151709780761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818413.

The product of its (nonzero) digits is 3704400, while the sum is 57.

The spelling of 5151709780761 in words is "five trillion, one hundred fifty-one billion, seven hundred nine million, seven hundred eighty thousand, seven hundred sixty-one".

Divisors: 1 3 61 127 183 271 381 813 7747 16531 23241 34417 49593 103251 817951 2099437 2453853 6298311 49895011 103879777 149685033 221664721 311639331 664994163 6336666397 13521547981 19009999191 28151419567 40564643943 84454258701 1717236593587 5151709780761