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2214213381 = 332347107709
BaseRepresentation
bin1000001111111010…
…0011011100000101
312201022102200202000
42003332203130011
514013314312011
61003414135513
7105604334412
oct20376433405
95638380660
102214213381
11a36958316
12519651599
13293969c43
141700db109
15ce5c8356
hex83fa3705

2214213381 has 64 divisors (see below), whose sum is σ = 3533414400. Its totient is φ = 1367074368.

The previous prime is 2214213367. The next prime is 2214213389. The reversal of 2214213381 is 1833124122.

2214213381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2214213381 - 211 = 2214211333 is a prime.

It is a super-2 number, since 2×22142133812 = 9805481793198902322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2214213389) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3122655 + ... + 3123363.

It is an arithmetic number, because the mean of its divisors is an integer number (55209600).

Almost surely, 22214213381 is an apocalyptic number.

It is an amenable number.

2214213381 is a deficient number, since it is larger than the sum of its proper divisors (1319201019).

2214213381 is a wasteful number, since it uses less digits than its factorization.

2214213381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895 (or 889 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 2214213381 is about 47055.4288153875. The cubic root of 2214213381 is about 1303.3863156504.

The spelling of 2214213381 in words is "two billion, two hundred fourteen million, two hundred thirteen thousand, three hundred eighty-one".

Divisors: 1 3 9 23 27 47 69 107 141 207 321 423 621 709 963 1081 1269 2127 2461 2889 3243 5029 6381 7383 9729 15087 16307 19143 22149 29187 33323 45261 48921 66447 75863 99969 115667 135783 146763 227589 299907 347001 440289 682767 766429 899721 1041003 1744849 2048301 2299287 3123009 3565561 5234547 6897861 10696683 15703641 20693583 32090049 47110923 82007903 96270147 246023709 738071127 2214213381