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4220251025 = 521923478219
BaseRepresentation
bin1111101110001011…
…1110101110010001
3101220010010222001112
43323202332232101
532120341013100
61534434343105
7206403353564
oct37342765621
911803128045
104220251025
111876249071
1299942aa95
13523449473
142c06c84db
1519a77eb35
hexfb8beb91

4220251025 has 48 divisors (see below), whose sum is σ = 5871052800. Its totient is φ = 2993981760.

The previous prime is 4220250989. The next prime is 4220251027. The reversal of 4220251025 is 5201520224.

It is not a de Polignac number, because 4220251025 - 218 = 4219988881 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (4220251027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 509366 + ... + 517584.

It is an arithmetic number, because the mean of its divisors is an integer number (122313600).

Almost surely, 24220251025 is an apocalyptic number.

It is an amenable number.

4220251025 is a deficient number, since it is larger than the sum of its proper divisors (1650801775).

4220251025 is a wasteful number, since it uses less digits than its factorization.

4220251025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8318 (or 8313 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 4220251025 is about 64963.4591520495. The cubic root of 4220251025 is about 1616.0176309682.

Adding to 4220251025 its reverse (5201520224), we get a palindrome (9421771249).

The spelling of 4220251025 in words is "four billion, two hundred twenty million, two hundred fifty-one thousand, twenty-five".

Divisors: 1 5 19 23 25 47 95 115 235 437 475 575 893 1081 1175 2185 4465 5405 8219 10925 20539 22325 27025 41095 102695 156161 189037 205475 386293 513475 780805 945185 1931465 3591703 3904025 4725925 7339567 8884739 9657325 17958515 36697835 44423695 89792575 168810041 183489175 222118475 844050205 4220251025