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57385782651 = 319128594217
BaseRepresentation
bin110101011100011101…
…011000110101111011
312111010022110210201110
4311130131120311323
51420011230021101
642210200251403
74101034050531
oct653435306573
9174108423643
1057385782651
112237886195a
12b156470b63
135546c79c12
142ac55d0151
15175ceb4cd6
hexd5c758d7b

57385782651 has 4 divisors (see below), whose sum is σ = 76514376872. Its totient is φ = 38257188432.

The previous prime is 57385782637. The next prime is 57385782661. The reversal of 57385782651 is 15628758375.

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

It is not a de Polignac number, because 57385782651 - 222 = 57381588347 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57385782591 and 57385782600.

It is not an unprimeable number, because it can be changed into a prime (57385782661) 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, 9564297106 + ... + 9564297111.

It is an arithmetic number, because the mean of its divisors is an integer number (19128594218).

Almost surely, 257385782651 is an apocalyptic number.

57385782651 is a deficient number, since it is larger than the sum of its proper divisors (19128594221).

57385782651 is a wasteful number, since it uses less digits than its factorization.

57385782651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19128594220.

The product of its digits is 14112000, while the sum is 57.

The spelling of 57385782651 in words is "fifty-seven billion, three hundred eighty-five million, seven hundred eighty-two thousand, six hundred fifty-one".

Divisors: 1 3 19128594217 57385782651