Search a number
-
+
2143142315 = 517131197977
BaseRepresentation
bin111111110111101…
…1100000110101011
312112100200220120022
41333233130012223
513342121023230
6552354551055
7104052260216
oct17757340653
95470626508
102143142315
119aa8255a6
124b989848b
13282014a62
141648ba77d
15c823a1e5
hex7fbdc1ab

2143142315 has 32 divisors (see below), whose sum is σ = 2760588864. Its totient is φ = 1591582720.

The previous prime is 2143142167. The next prime is 2143142327. The reversal of 2143142315 is 5132413412.

It is a happy number.

It is not a de Polignac number, because 2143142315 - 218 = 2142880171 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2193107 + ... + 2194083.

It is an arithmetic number, because the mean of its divisors is an integer number (86268402).

Almost surely, 22143142315 is an apocalyptic number.

2143142315 is a deficient number, since it is larger than the sum of its proper divisors (617446549).

2143142315 is a wasteful number, since it uses less digits than its factorization.

2143142315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327.

The product of its digits is 2880, while the sum is 26.

The square root of 2143142315 is about 46294.0850973426. The cubic root of 2143142315 is about 1289.2891773268.

Adding to 2143142315 its reverse (5132413412), we get a palindrome (7275555727).

The spelling of 2143142315 in words is "two billion, one hundred forty-three million, one hundred forty-two thousand, three hundred fifteen".

Divisors: 1 5 17 85 131 197 655 977 985 2227 3349 4885 11135 16609 16745 25807 83045 127987 129035 192469 438719 639935 962345 2175779 2193595 3271973 10878895 16359865 25213439 126067195 428628463 2143142315