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3230220 = 223577691
BaseRepresentation
bin1100010100101000001100
320002010000210
430110220030
51311331340
6153122420
736312360
oct14245014
96063023
103230220
111906a04
1210b9410
13891396
146012a0
1543c180
hex314a0c

3230220 has 48 divisors (see below), whose sum is σ = 10338048. Its totient is φ = 738240.

The previous prime is 3230207. The next prime is 3230237. The reversal of 3230220 is 220323.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 3230196 and 3230205.

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, 3426 + ... + 4265.

It is an arithmetic number, because the mean of its divisors is an integer number (215376).

Almost surely, 23230220 is an apocalyptic number.

3230220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3230220 is an abundant number, since it is smaller than the sum of its proper divisors (7107828).

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

3230220 is a wasteful number, since it uses less digits than its factorization.

3230220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7710 (or 7708 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 3230220 is about 1797.2812801562. The cubic root of 3230220 is about 147.8236882666.

Adding to 3230220 its reverse (220323), we get a palindrome (3450543).

The spelling of 3230220 in words is "three million, two hundred thirty thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 7691 15382 23073 30764 38455 46146 53837 76910 92292 107674 115365 153820 161511 215348 230730 269185 323022 461460 538370 646044 807555 1076740 1615110 3230220