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2543244601 = 19133854979
BaseRepresentation
bin1001011110010110…
…1101010100111001
320120020120012201111
42113211231110321
520202032311401
61100210320321
7120011136202
oct22745552471
96506505644
102543244601
111095660347
125ab8890a1
13316b90a81
141a1aaa5a9
15ed41de51
hex9796d539

2543244601 has 4 divisors (see below), whose sum is σ = 2677099600. Its totient is φ = 2409389604.

The previous prime is 2543244577. The next prime is 2543244607. The reversal of 2543244601 is 1064423452.

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 2543244601 - 211 = 2543242553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2543244607) 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, 66927471 + ... + 66927508.

It is an arithmetic number, because the mean of its divisors is an integer number (669274900).

Almost surely, 22543244601 is an apocalyptic number.

It is an amenable number.

2543244601 is a deficient number, since it is larger than the sum of its proper divisors (133854999).

2543244601 is a wasteful number, since it uses less digits than its factorization.

2543244601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133854998.

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 2543244601 is about 50430.5919160186. The cubic root of 2543244601 is about 1364.9897088053.

The spelling of 2543244601 in words is "two billion, five hundred forty-three million, two hundred forty-four thousand, six hundred one".

Divisors: 1 19 133854979 2543244601