Search a number
-
+
57800002 = 21314891493
BaseRepresentation
bin1101110001111…
…1010101000010
311000202112200211
43130133111002
5104244100002
65422504334
71301202061
oct334372502
9130675624
1057800002
112a698aa7
12174350aa
13bc897b0
1479681d8
15511add7
hex371f542

57800002 has 16 divisors (see below), whose sum is σ = 93494520. Its totient is φ = 26641152.

The previous prime is 57799993. The next prime is 57800011. The reversal of 57800002 is 20000875.

It is an interprime number because it is at equal distance from previous prime (57799993) and next prime (57800011).

It can be written as a sum of positive squares in 4 ways, for example, as 43046721 + 14753281 = 6561^2 + 3841^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37968 + ... + 39460.

Almost surely, 257800002 is an apocalyptic number.

57800002 is a deficient number, since it is larger than the sum of its proper divisors (35694518).

57800002 is a wasteful number, since it uses less digits than its factorization.

57800002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2997.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 57800002 is about 7602.6312550327. The cubic root of 57800002 is about 386.6422277790.

Adding to 57800002 its reverse (20000875), we get a palindrome (77800877).

It can be divided in two parts, 5780000 and 2, that multiplied together give a square (11560000 = 34002).

The spelling of 57800002 in words is "fifty-seven million, eight hundred thousand, two".

Divisors: 1 2 13 26 1489 1493 2978 2986 19357 19409 38714 38818 2223077 4446154 28900001 57800002