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3125441220 = 2235115980263
BaseRepresentation
bin1011101001001010…
…0111001011000100
322001211001212100020
42322102213023010
522400103104340
61234045015140
7140310545346
oct27222471304
98054055306
103125441220
111364259280
127328544b0
133aa695005
1421913b296
151345c19d0
hexba4a72c4

3125441220 has 96 divisors (see below), whose sum is σ = 9708733440. Its totient is φ = 744831360.

The previous prime is 3125441153. The next prime is 3125441237. The reversal of 3125441220 is 221445213.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1192 + ... + 79071.

It is an arithmetic number, because the mean of its divisors is an integer number (101132640).

Almost surely, 23125441220 is an apocalyptic number.

3125441220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3125441220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4854366720).

3125441220 is an abundant number, since it is smaller than the sum of its proper divisors (6583292220).

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

3125441220 is a wasteful number, since it uses less digits than its factorization.

3125441220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80345 (or 80343 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 3125441220 is about 55905.6456898586. The cubic root of 3125441220 is about 1462.0776730741.

Adding to 3125441220 its reverse (221445213), we get a palindrome (3346886433).

The spelling of 3125441220 in words is "three billion, one hundred twenty-five million, four hundred forty-one thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 59 60 66 110 118 132 165 177 220 236 295 330 354 590 649 660 708 885 1180 1298 1770 1947 2596 3245 3540 3894 6490 7788 9735 12980 19470 38940 80263 160526 240789 321052 401315 481578 802630 882893 963156 1203945 1605260 1765786 2407890 2648679 3531572 4414465 4735517 4815780 5297358 8828930 9471034 10594716 13243395 14206551 17657860 18942068 23677585 26486790 28413102 47355170 52090687 52973580 56826204 71032755 94710340 104181374 142065510 156272061 208362748 260453435 284131020 312544122 520906870 625088244 781360305 1041813740 1562720610 3125441220