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2642452811 = 4316130981
BaseRepresentation
bin1001110110000000…
…1010000101001011
320211011020111210122
42131200022011023
520402431442221
61114112533455
7122324323025
oct23540120513
96734214718
102642452811
1111366609a9
12618b5128b
133315b805b
141b0d33015
15106eb8eab
hex9d80a14b

2642452811 has 4 divisors (see below), whose sum is σ = 2648584224. Its totient is φ = 2636321400.

The previous prime is 2642452807. The next prime is 2642452843. The reversal of 2642452811 is 1182542462.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2642452811 - 22 = 2642452807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2642452861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3065060 + ... + 3065921.

It is an arithmetic number, because the mean of its divisors is an integer number (662146056).

Almost surely, 22642452811 is an apocalyptic number.

2642452811 is a deficient number, since it is larger than the sum of its proper divisors (6131413).

2642452811 is an equidigital number, since it uses as much as digits as its factorization.

2642452811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6131412.

The product of its digits is 30720, while the sum is 35.

The square root of 2642452811 is about 51404.7936577903. The cubic root of 2642452811 is about 1382.5125428569.

The spelling of 2642452811 in words is "two billion, six hundred forty-two million, four hundred fifty-two thousand, eight hundred eleven".

Divisors: 1 431 6130981 2642452811