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2231204130 = 23551019091
BaseRepresentation
bin1000010011111101…
…0111100100100010
312202111101220200000
42010333113210202
514032142013010
61005222240430
7106201631211
oct20477274442
95674356600
102231204130
11a45502761
12523286116
1329733873c
14172481078
15d0d327c0
hex84fd7922

2231204130 has 96 divisors (see below), whose sum is σ = 6076219968. Its totient is φ = 589032000.

The previous prime is 2231204071. The next prime is 2231204141. The reversal of 2231204130 is 314021322.

2231204130 is a `hidden beast` number, since 2 + 231 + 20 + 413 + 0 = 666.

2231204130 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×22312041303 (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 240885 + ... + 249975.

It is an arithmetic number, because the mean of its divisors is an integer number (63293958).

Almost surely, 22231204130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2231204130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3038109984).

2231204130 is an abundant number, since it is smaller than the sum of its proper divisors (3845015838).

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

2231204130 is a wasteful number, since it uses less digits than its factorization.

2231204130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9214 (or 9202 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2231204130 is about 47235.6235271643. The cubic root of 2231204130 is about 1306.7116659702.

Adding to 2231204130 its reverse (314021322), we get a palindrome (2545225452).

The spelling of 2231204130 in words is "two billion, two hundred thirty-one million, two hundred four thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 101 135 162 202 243 270 303 405 486 505 606 810 909 1010 1215 1515 1818 2430 2727 3030 4545 5454 8181 9090 9091 13635 16362 18182 24543 27270 27273 40905 45455 49086 54546 81810 81819 90910 122715 136365 163638 245430 245457 272730 409095 490914 736371 818190 918191 1227285 1472742 1836382 2209113 2454570 2754573 3681855 4418226 4590955 5509146 7363710 8263719 9181910 11045565 13772865 16527438 22091130 24791157 27545730 41318595 49582314 74373471 82637190 123955785 148746942 223120413 247911570 371867355 446240826 743734710 1115602065 2231204130