Search a number
-
+
12734788481 = 48772735969
BaseRepresentation
bin10111101110000110…
…10111001110000001
31012212111202021122122
423313003113032001
5202040101212411
65503354414025
7630402626132
oct136703271601
935774667578
1012734788481
115445502088
122574a31315
13127c4645cc
1488b44dc89
154e80159db
hex2f70d7381

12734788481 has 8 divisors (see below), whose sum is σ = 12778846080. Its totient is φ = 12690805248.

The previous prime is 12734788439. The next prime is 12734788489. The reversal of 12734788481 is 18488743721.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12734788481 is a prime.

It is a super-2 number, since 2×127347884812 (a number of 21 digits) contains 22 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 (12734788489) 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, 336065 + ... + 372033.

It is an arithmetic number, because the mean of its divisors is an integer number (1597355760).

Almost surely, 212734788481 is an apocalyptic number.

It is an amenable number.

12734788481 is a deficient number, since it is larger than the sum of its proper divisors (44057599).

12734788481 is an equidigital number, since it uses as much as digits as its factorization.

12734788481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37183.

The product of its digits is 2408448, while the sum is 53.

The spelling of 12734788481 in words is "twelve billion, seven hundred thirty-four million, seven hundred eighty-eight thousand, four hundred eighty-one".

Divisors: 1 487 727 35969 354049 17516903 26149463 12734788481