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2231102321 = 71798319073
BaseRepresentation
bin1000010011111011…
…1110101101110001
312202111012202000022
42010332332231301
514032130233241
61005220133225
7106201025330
oct20476765561
95674182008
102231102321
11a45443218
12523237215
132973012b6
14172455d17
15d0d1254b
hex84fbeb71

2231102321 has 16 divisors (see below), whose sum is σ = 2702709504. Its totient is φ = 1797955584.

The previous prime is 2231102311. The next prime is 2231102323. The reversal of 2231102321 is 1232011322.

It is a cyclic number.

It is not a de Polignac number, because 2231102321 - 230 = 1157360497 is a prime.

It is a super-3 number, since 3×22311023213 (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 2231102321.

It is not an unprimeable number, because it can be changed into a prime (2231102323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107441 + ... + 126513.

It is an arithmetic number, because the mean of its divisors is an integer number (168919344).

Almost surely, 22231102321 is an apocalyptic number.

It is an amenable number.

2231102321 is a deficient number, since it is larger than the sum of its proper divisors (471607183).

2231102321 is a wasteful number, since it uses less digits than its factorization.

2231102321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20080.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2231102321 is about 47234.5458430586. The cubic root of 2231102321 is about 1306.6917907483.

Adding to 2231102321 its reverse (1232011322), we get a palindrome (3463113643).

Subtracting from 2231102321 its reverse (1232011322), we obtain a palindrome (999090999).

The spelling of 2231102321 in words is "two billion, two hundred thirty-one million, one hundred two thousand, three hundred twenty-one".

Divisors: 1 7 17 119 983 6881 16711 19073 116977 133511 324241 2269687 18748759 131241313 318728903 2231102321