Search a number
-
+
13021054634 = 27930075331
BaseRepresentation
bin11000010000001110…
…11000011010101010
31020121110102002222202
430020013120122222
5203131342222014
65552022220202
7640450065260
oct141007303252
936543362882
1013021054634
115582056085
122634884662
1312c6864173
148b748a430
155132103de
hex3081d86aa

13021054634 has 8 divisors (see below), whose sum is σ = 22321807968. Its totient is φ = 5580451980.

The previous prime is 13021054621. The next prime is 13021054637. The reversal of 13021054634 is 43645012031.

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

It is a super-2 number, since 2×130210546342 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13021054597 and 13021054606.

It is not an unprimeable number, because it can be changed into a prime (13021054637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 465037652 + ... + 465037679.

It is an arithmetic number, because the mean of its divisors is an integer number (2790225996).

Almost surely, 213021054634 is an apocalyptic number.

13021054634 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13021054634 is a deficient number, since it is larger than the sum of its proper divisors (9300753334).

13021054634 is an equidigital number, since it uses as much as digits as its factorization.

13021054634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930075340.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 13021054634 its reverse (43645012031), we get a palindrome (56666066665).

The spelling of 13021054634 in words is "thirteen billion, twenty-one million, fifty-four thousand, six hundred thirty-four".

Divisors: 1 2 7 14 930075331 1860150662 6510527317 13021054634