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21241331032 = 237933609701
BaseRepresentation
bin10011110010000101…
…001111110101011000
32000211100022102022011
4103302011033311120
5322000240043112
613431431235304
71351244222545
oct236205176530
960740272264
1021241331032
1190101a5439
124149818b34
13200691073c
1410570d3bcc
15844c1caa7
hex4f214fd58

21241331032 has 16 divisors (see below), whose sum is σ = 40331642400. Its totient is φ = 10486226400.

The previous prime is 21241330973. The next prime is 21241331047. The reversal of 21241331032 is 23013314212.

It is a super-2 number, since 2×212413310322 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21241330994 and 21241331012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16804219 + ... + 16805482.

It is an arithmetic number, because the mean of its divisors is an integer number (2520727650).

Almost surely, 221241331032 is an apocalyptic number.

It is an amenable number.

21241331032 is a deficient number, since it is larger than the sum of its proper divisors (19090311368).

21241331032 is a wasteful number, since it uses less digits than its factorization.

21241331032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33609786 (or 33609782 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21241331032 its reverse (23013314212), we get a palindrome (44254645244).

The spelling of 21241331032 in words is "twenty-one billion, two hundred forty-one million, three hundred thirty-one thousand, thirty-two".

Divisors: 1 2 4 8 79 158 316 632 33609701 67219402 134438804 268877608 2655166379 5310332758 10620665516 21241331032