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3213003220 = 2257149154027
BaseRepresentation
bin1011111110000010…
…1000100111010100
322021220211110211021
42333200220213110
523040012100340
61250453450524
7142423035220
oct27740504724
98256743737
103213003220
1113a9724969
12758040a44
133c287234b
14226a11780
1513c11ae4a
hexbf8289d4

3213003220 has 48 divisors (see below), whose sum is σ = 7763011200. Its totient is φ = 1094200704.

The previous prime is 3213003203. The next prime is 3213003223. The reversal of 3213003220 is 223003123.

3213003220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3213003194 and 3213003203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213003223) 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, 56154 + ... + 97873.

It is an arithmetic number, because the mean of its divisors is an integer number (161729400).

Almost surely, 23213003220 is an apocalyptic number.

It is an amenable number.

3213003220 is an abundant number, since it is smaller than the sum of its proper divisors (4550007980).

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

3213003220 is a wasteful number, since it uses less digits than its factorization.

3213003220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154192 (or 154190 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 3213003220 is about 56683.3592864784. The cubic root of 3213003220 is about 1475.6059132775.

Adding to 3213003220 its reverse (223003123), we get a palindrome (3436006343).

The spelling of 3213003220 in words is "three billion, two hundred thirteen million, three thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 149 298 596 745 1043 1490 2086 2980 4172 5215 10430 20860 154027 308054 616108 770135 1078189 1540270 2156378 3080540 4312756 5390945 10781890 21563780 22950023 45900046 91800092 114750115 160650161 229500230 321300322 459000460 642600644 803250805 1606501610 3213003220