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2231121232 = 241497691217
BaseRepresentation
bin1000010011111100…
…0011010101010000
312202111020200221201
42010333003111100
514032131334412
61005220400544
7106201134424
oct20477032520
95674220851
102231121232
11a4545644a
12523246154
13297309aa2
1417245cb84
15d0d17e57
hex84fc3550

2231121232 has 40 divisors (see below), whose sum is σ = 4361049000. Its totient is φ = 1105723392.

The previous prime is 2231121229. The next prime is 2231121241. The reversal of 2231121232 is 2321211322.

It can be written as a sum of positive squares in 4 ways, for example, as 2903616 + 2228217616 = 1704^2 + 47204^2 .

It is a super-3 number, since 3×22311212323 (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1832688 + ... + 1833904.

It is an arithmetic number, because the mean of its divisors is an integer number (109026225).

Almost surely, 22231121232 is an apocalyptic number.

It is an amenable number.

2231121232 is a deficient number, since it is larger than the sum of its proper divisors (2129927768).

2231121232 is a wasteful number, since it uses less digits than its factorization.

2231121232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2143 (or 2137 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 2231121232 is about 47234.7460245104. The cubic root of 2231121232 is about 1306.6954826122.

Adding to 2231121232 its reverse (2321211322), we get a palindrome (4552332554).

The spelling of 2231121232 in words is "two billion, two hundred thirty-one million, one hundred twenty-one thousand, two hundred thirty-two".

Divisors: 1 2 4 8 16 149 298 596 769 1192 1217 1538 2384 2434 3076 4868 6152 9736 12304 19472 114581 181333 229162 362666 458324 725332 916648 935873 1450664 1833296 1871746 2901328 3743492 7486984 14973968 139445077 278890154 557780308 1115560616 2231121232