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2642051390 = 251124018649
BaseRepresentation
bin1001110101111010…
…1000000100111110
320211010111010011012
42131132220010332
520402331121030
61114100155222
7122321031506
oct23536500476
96733433135
102642051390
111136407350
12618998b12
133314a7424
141b0c6aa06
15106e3a095
hex9d7a813e

2642051390 has 16 divisors (see below), whose sum is σ = 5188028400. Its totient is φ = 960745920.

The previous prime is 2642051359. The next prime is 2642051393. The reversal of 2642051390 is 931502462.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2642051393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12009215 + ... + 12009434.

It is an arithmetic number, because the mean of its divisors is an integer number (324251775).

Almost surely, 22642051390 is an apocalyptic number.

2642051390 is a deficient number, since it is larger than the sum of its proper divisors (2545977010).

2642051390 is a wasteful number, since it uses less digits than its factorization.

2642051390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24018667.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 2642051390 is about 51400.8890000942. The cubic root of 2642051390 is about 1382.4425324396.

The spelling of 2642051390 in words is "two billion, six hundred forty-two million, fifty-one thousand, three hundred ninety".

Divisors: 1 2 5 10 11 22 55 110 24018649 48037298 120093245 240186490 264205139 528410278 1321025695 2642051390