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57081140573 = 371542733529
BaseRepresentation
bin110101001010010011…
…010001010101011101
312110100002020101100112
4311022103101111131
51413400232444243
642120034535405
74060344455312
oct651223212535
9173302211315
1057081140573
11222318a7846
12b090437565
1354c8b15232
142a96d6cd09
15174138a818
hexd4a4d155d

57081140573 has 4 divisors (see below), whose sum is σ = 58623874140. Its totient is φ = 55538407008.

The previous prime is 57081140551. The next prime is 57081140671. The reversal of 57081140573 is 37504118075.

It is a happy number.

57081140573 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 41305278169 + 15775862404 = 203237^2 + 125602^2 .

It is a cyclic number.

It is not a de Polignac number, because 57081140573 - 220 = 57080091997 is a prime.

It is a super-2 number, since 2×570811405732 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57081140573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57081148573) 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, 771366728 + ... + 771366801.

It is an arithmetic number, because the mean of its divisors is an integer number (14655968535).

Almost surely, 257081140573 is an apocalyptic number.

It is an amenable number.

57081140573 is a deficient number, since it is larger than the sum of its proper divisors (1542733567).

57081140573 is a wasteful number, since it uses less digits than its factorization.

57081140573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542733566.

The product of its (nonzero) digits is 117600, while the sum is 41.

It can be divided in two parts, 5708114057 and 3, that multiplied together give a palindrome (17124342171).

The spelling of 57081140573 in words is "fifty-seven billion, eighty-one million, one hundred forty thousand, five hundred seventy-three".

Divisors: 1 37 1542733529 57081140573