Search a number
-
+
2278088806 = 27181899009
BaseRepresentation
bin1000011111001000…
…1110000001100110
312212202121220100111
42013302032001212
514131142320211
61014015203234
7110311302220
oct20762160146
95782556314
102278088806
11a69a15924
12536b1651a
132a3c72b56
141787a7410
15d4ee4421
hex87c8e066

2278088806 has 16 divisors (see below), whose sum is σ = 3926875680. Its totient is φ = 970928640.

The previous prime is 2278088783. The next prime is 2278088833. The reversal of 2278088806 is 6088808722.

It is a self number, because there is not a number n which added to its sum of digits gives 2278088806.

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, 446971 + ... + 452038.

It is an arithmetic number, because the mean of its divisors is an integer number (245429730).

Almost surely, 22278088806 is an apocalyptic number.

2278088806 is a deficient number, since it is larger than the sum of its proper divisors (1648786874).

2278088806 is a wasteful number, since it uses less digits than its factorization.

2278088806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899199.

The product of its (nonzero) digits is 688128, while the sum is 49.

The square root of 2278088806 is about 47729.3285726921. The cubic root of 2278088806 is about 1315.8010138035.

The spelling of 2278088806 in words is "two billion, two hundred seventy-eight million, eighty-eight thousand, eight hundred six".

Divisors: 1 2 7 14 181 362 1267 2534 899009 1798018 6293063 12586126 162720629 325441258 1139044403 2278088806