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3223820 = 225359449
BaseRepresentation
bin1100010011000100001100
320001210020202
430103010030
51311130240
6153033032
736254615
oct14230414
96053222
103223820
111902116
1210b5778
1388b4b2
145dcc0c
1543a315
hex31310c

3223820 has 24 divisors (see below), whose sum is σ = 6804000. Its totient is φ = 1283072.

The previous prime is 3223817. The next prime is 3223837. The reversal of 3223820 is 283223.

It is a happy number.

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 = 3223792 and 3223801.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6956 + ... + 7404.

It is an arithmetic number, because the mean of its divisors is an integer number (283500).

Almost surely, 23223820 is an apocalyptic number.

It is a pronic number, being equal to 1795×1796.

It is an amenable number.

3223820 is an abundant number, since it is smaller than the sum of its proper divisors (3580180).

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

3223820 is a wasteful number, since it uses less digits than its factorization.

3223820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817 (or 815 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 3223820 is about 1795.4999303815. The cubic root of 3223820 is about 147.7259965606.

The spelling of 3223820 in words is "three million, two hundred twenty-three thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 359 449 718 898 1436 1795 1796 2245 3590 4490 7180 8980 161191 322382 644764 805955 1611910 3223820