Search a number
-
+
131554097789 = 435951854197
BaseRepresentation
bin111101010000100111…
…1000011101001111101
3110120120020020121000012
41322201033003221331
54123410322112124
6140233552513005
712335014244462
oct1724117035175
9416506217005
10131554097789
1150878949874
12215b524b765
13c536b5841a
14651da51669
15364e4e6e0e
hex1ea13c3a7d

131554097789 has 8 divisors (see below), whose sum is σ = 136895082720. Its totient is φ = 126316821456.

The previous prime is 131554097783. The next prime is 131554097791. The reversal of 131554097789 is 987790455131.

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

It is a cyclic number.

It is not a de Polignac number, because 131554097789 - 220 = 131553049213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131554097783) 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, 25924562 + ... + 25929635.

It is an arithmetic number, because the mean of its divisors is an integer number (17111885340).

Almost surely, 2131554097789 is an apocalyptic number.

It is an amenable number.

131554097789 is a deficient number, since it is larger than the sum of its proper divisors (5340984931).

131554097789 is an equidigital number, since it uses as much as digits as its factorization.

131554097789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51854299.

The product of its (nonzero) digits is 9525600, while the sum is 59.

The spelling of 131554097789 in words is "one hundred thirty-one billion, five hundred fifty-four million, ninety-seven thousand, seven hundred eighty-nine".

Divisors: 1 43 59 2537 51854197 2229730471 3059397623 131554097789