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3225130220 = 2251399112517
BaseRepresentation
bin1100000000111011…
…1001010011101100
322022202122120221102
43000032321103230
523101113131340
61252005422232
7142631104004
oct30016712354
98282576842
103225130220
111405558084
1276010a978
133c522a0a0
1422848b004
1513d214215
hexc03b94ec

3225130220 has 48 divisors (see below), whose sum is σ = 7301699328. Its totient is φ = 1189520640.

The previous prime is 3225130217. The next prime is 3225130241. The reversal of 3225130220 is 220315223.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3225130192 and 3225130201.

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, 251402 + ... + 263918.

It is an arithmetic number, because the mean of its divisors is an integer number (152118736).

Almost surely, 23225130220 is an apocalyptic number.

It is an amenable number.

3225130220 is an abundant number, since it is smaller than the sum of its proper divisors (4076569108).

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

3225130220 is a wasteful number, since it uses less digits than its factorization.

3225130220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13530 (or 13528 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 3225130220 is about 56790.2299695995. The cubic root of 3225130220 is about 1477.4600670798.

Adding to 3225130220 its reverse (220315223), we get a palindrome (3445445443).

The spelling of 3225130220 in words is "three billion, two hundred twenty-five million, one hundred thirty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 991 1982 3964 4955 9910 12517 12883 19820 25034 25766 50068 51532 62585 64415 125170 128830 162721 250340 257660 325442 650884 813605 1627210 3254420 12404347 24808694 49617388 62021735 124043470 161256511 248086940 322513022 645026044 806282555 1612565110 3225130220