Search a number
-
+
2315129541 = 38334926641
BaseRepresentation
bin1000100111111110…
…0001001011000101
312222100022202200120
42021333201023011
514220133121131
61021421132153
7111241163544
oct21177411305
95870282616
102315129541
11a889150aa
125473ba059
132ab84174a
1417d68a15b
15d83ae496
hex89fe12c5

2315129541 has 16 divisors (see below), whose sum is σ = 3133099200. Its totient is φ = 1520398080.

The previous prime is 2315129533. The next prime is 2315129543. The reversal of 2315129541 is 1459215132.

It is a happy number.

2315129541 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2315129541 - 23 = 2315129533 is a prime.

It is a super-2 number, since 2×23151295412 = 10719649583221741362, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2315129543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73581 + ... + 100221.

It is an arithmetic number, because the mean of its divisors is an integer number (195818700).

Almost surely, 22315129541 is an apocalyptic number.

It is an amenable number.

2315129541 is a deficient number, since it is larger than the sum of its proper divisors (817969659).

2315129541 is a wasteful number, since it uses less digits than its factorization.

2315129541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27076.

The product of its digits is 10800, while the sum is 33.

The square root of 2315129541 is about 48115.7930517621. The cubic root of 2315129541 is about 1322.8941588580.

The spelling of 2315129541 in words is "two billion, three hundred fifteen million, one hundred twenty-nine thousand, five hundred forty-one".

Divisors: 1 3 83 249 349 1047 26641 28967 79923 86901 2211203 6633609 9297709 27893127 771709847 2315129541