Search a number
-
+
57081280568 = 23134967110501
BaseRepresentation
bin110101001010010011…
…110011100000111000
312110100002111111101112
4311022103303200320
51413400301434233
642120041535452
74060345610414
oct651223634070
9173302444345
1057081280568
1122231992a44
12b0904a4588
1354c8b63b80
142a96da7d44
1517413b7048
hexd4a4f3838

57081280568 has 32 divisors (see below), whose sum is σ = 115284526560. Its totient is φ = 26339664000.

The previous prime is 57081280559. The next prime is 57081280573. The reversal of 57081280568 is 86508218075.

It is a congruent number.

It is an unprimeable number.

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, 461318 + ... + 571818.

It is an arithmetic number, because the mean of its divisors is an integer number (3602641455).

Almost surely, 257081280568 is an apocalyptic number.

It is an amenable number.

57081280568 is an abundant number, since it is smaller than the sum of its proper divisors (58203245992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57081280568 is a wasteful number, since it uses less digits than its factorization.

57081280568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115487 (or 115483 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 50.

The spelling of 57081280568 in words is "fifty-seven billion, eighty-one million, two hundred eighty thousand, five hundred sixty-eight".

Divisors: 1 2 4 8 13 26 52 104 4967 9934 19868 39736 64571 110501 129142 221002 258284 442004 516568 884008 1436513 2873026 5746052 11492104 548858467 1097716934 2195433868 4390867736 7135160071 14270320142 28540640284 57081280568