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3105002220 = 223552799803
BaseRepresentation
bin1011100100010010…
…1001001011101100
322000101121110022020
42321010221023230
522324340032340
61232034550140
7136642040415
oct27104511354
98011543266
103105002220
111353769141
12727a38350
133a6389b28
1421653a80c
151328d59d0
hexb91292ec

3105002220 has 48 divisors (see below), whose sum is σ = 8696540160. Its totient is φ = 827759296.

The previous prime is 3105002183. The next prime is 3105002227. The reversal of 3105002220 is 222005013.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 3105002220.

It is not an unprimeable number, because it can be changed into a prime (3105002227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311839 + ... + 321641.

It is an arithmetic number, because the mean of its divisors is an integer number (181177920).

Almost surely, 23105002220 is an apocalyptic number.

3105002220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3105002220 is an abundant number, since it is smaller than the sum of its proper divisors (5591537940).

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

3105002220 is a wasteful number, since it uses less digits than its factorization.

3105002220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15094 (or 15092 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 3105002220 is about 55722.5467831469. The cubic root of 3105002220 is about 1458.8835870170.

Adding to 3105002220 its reverse (222005013), we get a palindrome (3327007233).

The spelling of 3105002220 in words is "three billion, one hundred five million, two thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 5279 9803 10558 15837 19606 21116 26395 29409 31674 39212 49015 52790 58818 63348 79185 98030 105580 117636 147045 158370 196060 294090 316740 588180 51750037 103500074 155250111 207000148 258750185 310500222 517500370 621000444 776250555 1035000740 1552501110 3105002220