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57357785245 = 511471557049
BaseRepresentation
bin110101011010110010…
…100101100010011101
312111001100210101111111
4311122302211202131
51414432043111440
642203320222021
74100244062455
oct653262454235
9174040711444
1057357785245
1122363a7a002
12b14900a911
1355412265c7
142ac19c2d65
15175a7d44ea
hexd5aca589d

57357785245 has 4 divisors (see below), whose sum is σ = 68829342300. Its totient is φ = 45886228192.

The previous prime is 57357785237. The next prime is 57357785263. The reversal of 57357785245 is 54258775375.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17761959076 + 39595826169 = 133274^2 + 198987^2 .

It is a cyclic number.

It is not a de Polignac number, because 57357785245 - 23 = 57357785237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57357785245.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5735778520 + ... + 5735778529.

It is an arithmetic number, because the mean of its divisors is an integer number (17207335575).

Almost surely, 257357785245 is an apocalyptic number.

It is an amenable number.

57357785245 is a deficient number, since it is larger than the sum of its proper divisors (11471557055).

57357785245 is a wasteful number, since it uses less digits than its factorization.

57357785245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11471557054.

The product of its digits is 41160000, while the sum is 58.

The spelling of 57357785245 in words is "fifty-seven billion, three hundred fifty-seven million, seven hundred eighty-five thousand, two hundred forty-five".

Divisors: 1 5 11471557049 57357785245