Search a number
-
+
57050900 = 2252570509
BaseRepresentation
bin1101100110100…
…0011100010100
310222100111010022
43121220130110
5104101112100
65354444312
71261632104
oct331503424
9128314108
1057050900
112a227205
1217133698
13ba8683a
147811204
15501de85
hex3668714

57050900 has 18 divisors (see below), whose sum is σ = 123800670. Its totient is φ = 22820320.

The previous prime is 57050899. The next prime is 57050933. The reversal of 57050900 is 905075.

It can be written as a sum of positive squares in 3 ways, for example, as 18957316 + 38093584 = 4354^2 + 6172^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 57050900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 285155 + ... + 285354.

It is an arithmetic number, because the mean of its divisors is an integer number (6877815).

Almost surely, 257050900 is an apocalyptic number.

57050900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

57050900 is an abundant number, since it is smaller than the sum of its proper divisors (66749770).

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

57050900 is a wasteful number, since it uses less digits than its factorization.

57050900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570523 (or 570516 counting only the distinct ones).

The product of its (nonzero) digits is 1575, while the sum is 26.

The square root of 57050900 is about 7553.2046179089. The cubic root of 57050900 is about 384.9646338459.

Adding to 57050900 its reverse (905075), we get a palindrome (57955975).

The spelling of 57050900 in words is "fifty-seven million, fifty thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 570509 1141018 2282036 2852545 5705090 11410180 14262725 28525450 57050900