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2231130020 = 225716795429
BaseRepresentation
bin1000010011111100…
…0101011110100100
312202111021011000012
42010333011132210
514032132130040
61005220505352
7106201202150
oct20477053644
95674234005
102231130020
11a45462009
1252324b258
13297310aa2
14172462060
15d0d1a865
hex84fc57a4

2231130020 has 48 divisors (see below), whose sum is σ = 5386832640. Its totient is φ = 760370304.

The previous prime is 2231129959. The next prime is 2231130049. The reversal of 2231130020 is 200311322.

It is a happy number.

2231130020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×22311300203 (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 2231129977 and 2231130004.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24335 + ... + 71094.

It is an arithmetic number, because the mean of its divisors is an integer number (112225680).

Almost surely, 22231130020 is an apocalyptic number.

2231130020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2231130020 is an abundant number, since it is smaller than the sum of its proper divisors (3155702620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2231130020 is a wasteful number, since it uses less digits than its factorization.

2231130020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95612 (or 95610 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2231130020 is about 47234.8390491595. The cubic root of 2231130020 is about 1306.6971982257.

Adding to 2231130020 its reverse (200311322), we get a palindrome (2431441342).

The spelling of 2231130020 in words is "two billion, two hundred thirty-one million, one hundred thirty thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 167 334 668 835 1169 1670 2338 3340 4676 5845 11690 23380 95429 190858 381716 477145 668003 954290 1336006 1908580 2672012 3340015 6680030 13360060 15936643 31873286 63746572 79683215 111556501 159366430 223113002 318732860 446226004 557782505 1115565010 2231130020