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49620489783 = 316540163261
BaseRepresentation
bin101110001101100111…
…001001011000110111
311202002010201001110220
4232031213021120313
51303110321133113
634443443145423
73404433126654
oct561547113067
9152063631426
1049620489783
111a053522447
129749975273
1348aa253777
14258a180c2b
1514563cc523
hexb8d9c9637

49620489783 has 4 divisors (see below), whose sum is σ = 66160653048. Its totient is φ = 33080326520.

The previous prime is 49620489781. The next prime is 49620489857. The reversal of 49620489783 is 38798402694.

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 49620489783 - 21 = 49620489781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49620489781) 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, 8270081628 + ... + 8270081633.

It is an arithmetic number, because the mean of its divisors is an integer number (16540163262).

Almost surely, 249620489783 is an apocalyptic number.

49620489783 is a deficient number, since it is larger than the sum of its proper divisors (16540163265).

49620489783 is a wasteful number, since it uses less digits than its factorization.

49620489783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16540163264.

The product of its (nonzero) digits is 20901888, while the sum is 60.

The spelling of 49620489783 in words is "forty-nine billion, six hundred twenty million, four hundred eighty-nine thousand, seven hundred eighty-three".

Divisors: 1 3 16540163261 49620489783