Search a number
-
+
2807280164 = 221353986157
BaseRepresentation
bin1010011101010011…
…1011001000100100
321020122101121102102
42213110323020210
521222130431124
61142321431232
7126365326163
oct24724731044
97218347372
102807280164
111210700157
1266419b518
133597a8b30
141c8b9b3da
151166c6aae
hexa753b224

2807280164 has 12 divisors (see below), whose sum is σ = 5290643484. Its totient is φ = 1295667744.

The previous prime is 2807280163. The next prime is 2807280167. The reversal of 2807280164 is 4610827082.

It can be written as a sum of positive squares in 2 ways, for example, as 370870564 + 2436409600 = 19258^2 + 49360^2 .

It is not an unprimeable number, because it can be changed into a prime (2807280163) 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, 26993027 + ... + 26993130.

It is an arithmetic number, because the mean of its divisors is an integer number (440886957).

Almost surely, 22807280164 is an apocalyptic number.

It is an amenable number.

2807280164 is a deficient number, since it is larger than the sum of its proper divisors (2483363320).

2807280164 is a wasteful number, since it uses less digits than its factorization.

2807280164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53986174 (or 53986172 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 2807280164 is about 52983.7726478589. The cubic root of 2807280164 is about 1410.6802485293.

The spelling of 2807280164 in words is "two billion, eight hundred seven million, two hundred eighty thousand, one hundred sixty-four".

Divisors: 1 2 4 13 26 52 53986157 107972314 215944628 701820041 1403640082 2807280164