Search a number
-
+
2145051286 = 271061144409
BaseRepresentation
bin111111111011010…
…1110001010010110
312112111021220011221
41333312232022112
513343113120121
6552503520554
7104104430560
oct17766561226
95474256157
102145051286
11a00909864
124ba45915a
13282532921
14164c56330
15c84b5b41
hex7fdae296

2145051286 has 16 divisors (see below), whose sum is σ = 3680722080. Its totient is φ = 918434880.

The previous prime is 2145051263. The next prime is 2145051317. The reversal of 2145051286 is 6821505412.

It is a happy number.

It is a congruent number.

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, 57351 + ... + 87058.

It is an arithmetic number, because the mean of its divisors is an integer number (230045130).

Almost surely, 22145051286 is an apocalyptic number.

2145051286 is a deficient number, since it is larger than the sum of its proper divisors (1535670794).

2145051286 is a wasteful number, since it uses less digits than its factorization.

2145051286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145479.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 2145051286 is about 46314.6983796721. The cubic root of 2145051286 is about 1289.6718685479.

Adding to 2145051286 its reverse (6821505412), we get a palindrome (8966556698).

The spelling of 2145051286 in words is "two billion, one hundred forty-five million, fifty-one thousand, two hundred eighty-six".

Divisors: 1 2 7 14 1061 2122 7427 14854 144409 288818 1010863 2021726 153217949 306435898 1072525643 2145051286