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2215013194 = 216342116139
BaseRepresentation
bin1000010000000110…
…0110101101001010
312201100221022212201
42010001212231022
514014020410234
61003443230414
7105614205262
oct20401465512
95640838781
102215013194
11a37354219
1251997840a
13293b89cc4
141702687a2
15ce6d5314
hex84066b4a

2215013194 has 16 divisors (see below), whose sum is σ = 3351051360. Its totient is φ = 1098029520.

The previous prime is 2215013189. The next prime is 2215013197. The reversal of 2215013194 is 4913105122.

It is not an unprimeable number, because it can be changed into a prime (2215013197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129177 + ... + 145315.

It is an arithmetic number, because the mean of its divisors is an integer number (209440710).

Almost surely, 22215013194 is an apocalyptic number.

2215013194 is a deficient number, since it is larger than the sum of its proper divisors (1136038166).

2215013194 is a wasteful number, since it uses less digits than its factorization.

2215013194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16725.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 2215013194 is about 47063.9266742587. The cubic root of 2215013194 is about 1303.5432321479.

It can be divided in two parts, 22150 and 13194, that added together give a square (35344 = 1882).

The spelling of 2215013194 in words is "two billion, two hundred fifteen million, thirteen thousand, one hundred ninety-four".

Divisors: 1 2 163 326 421 842 16139 32278 68623 137246 2630657 5261314 6794519 13589038 1107506597 2215013194