Search a number
-
+
2811730065157 = 131941587472993
BaseRepresentation
bin101000111010101000001…
…010111111011100000101
3100221210120022011122022101
4220322220022333130011
5332031410344041112
65551405125232101
7410066202133546
oct50725012773405
910853508148271
102811730065157
119944a2358102
12394b22862631
131751b67732b0
149a134a484cd
154d215ebe757
hex28ea82bf705

2811730065157 has 32 divisors (see below), whose sum is σ = 3270696750720. Its totient is φ = 2394777415680.

The previous prime is 2811730065149. The next prime is 2811730065173. The reversal of 2811730065157 is 7515600371182.

2811730065157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2811730065157 - 23 = 2811730065149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2811730063157) 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, 5708053 + ... + 6181045.

It is an arithmetic number, because the mean of its divisors is an integer number (102209273460).

Almost surely, 22811730065157 is an apocalyptic number.

It is an amenable number.

2811730065157 is a deficient number, since it is larger than the sum of its proper divisors (458966685563).

2811730065157 is a wasteful number, since it uses less digits than its factorization.

2811730065157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473653.

The product of its (nonzero) digits is 352800, while the sum is 46.

The spelling of 2811730065157 in words is "two trillion, eight hundred eleven billion, seven hundred thirty million, sixty-five thousand, one hundred fifty-seven".

Divisors: 1 13 19 41 247 533 587 779 7631 10127 11153 24067 144989 312871 457273 472993 5944549 6148909 8986867 19392713 116829271 252105269 277646891 368461547 3609409583 4790000111 5275290929 11383522531 68578782077 147985792903 216286928089 2811730065157