Search a number
-
+
2531040401353 = 3120238111711
BaseRepresentation
bin100100110101001101110…
…000111001011111001001
322221222001120001022221011
4210311031300321133021
5312432032320320403
65214424403443521
7350601353303362
oct44651560713711
98858046038834
102531040401353
11896454360242
1234a6483865a1
131548a348b829
148a708384b69
1545c88c4ba6d
hex24d4dc397c9

2531040401353 has 4 divisors (see below), whose sum is σ = 2531048825088. Its totient is φ = 2531031977620.

The previous prime is 2531040401303. The next prime is 2531040401377. The reversal of 2531040401353 is 3531040401352.

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 not a de Polignac number, because 2531040401353 - 233 = 2522450466761 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2531040401303) 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, 3743833 + ... + 4367878.

It is an arithmetic number, because the mean of its divisors is an integer number (632762206272).

Almost surely, 22531040401353 is an apocalyptic number.

It is an amenable number.

2531040401353 is a deficient number, since it is larger than the sum of its proper divisors (8423735).

2531040401353 is an equidigital number, since it uses as much as digits as its factorization.

2531040401353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8423734.

The product of its (nonzero) digits is 21600, while the sum is 31.

Subtracting 2531040401353 from its reverse (3531040401352), we obtain a palindrome (999999999999).

The spelling of 2531040401353 in words is "two trillion, five hundred thirty-one billion, forty million, four hundred one thousand, three hundred fifty-three".

Divisors: 1 312023 8111711 2531040401353