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30540401441 = 112776400131
BaseRepresentation
bin11100011100010110…
…011000101100100001
32220211102011010210022
4130130112120230201
51000021320321231
622010254443225
72130551062154
oct343426305441
986742133708
1030540401441
1111a522956a0
125b03b03515
132b59324674
14169a119c9b
15bdb2c2c7b
hex71c598b21

30540401441 has 4 divisors (see below), whose sum is σ = 33316801584. Its totient is φ = 27764001300.

The previous prime is 30540401389. The next prime is 30540401449. The reversal of 30540401441 is 14410404503.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30540401441 is a prime.

It is a super-2 number, since 2×305404014412 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30540401441.

It is not an unprimeable number, because it can be changed into a prime (30540401449) 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, 1388200055 + ... + 1388200076.

It is an arithmetic number, because the mean of its divisors is an integer number (8329200396).

Almost surely, 230540401441 is an apocalyptic number.

It is an amenable number.

30540401441 is a deficient number, since it is larger than the sum of its proper divisors (2776400143).

30540401441 is a wasteful number, since it uses less digits than its factorization.

30540401441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2776400142.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 30540401441 its reverse (14410404503), we get a palindrome (44950805944).

The spelling of 30540401441 in words is "thirty billion, five hundred forty million, four hundred one thousand, four hundred forty-one".

Divisors: 1 11 2776400131 30540401441