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3020032121 = 193115433323
BaseRepresentation
bin1011010000000010…
…0000100001111001
321210110201112020112
42310000200201321
522141112011441
61215401434105
7134560564241
oct26400404171
97713645215
103020032121
11130a802917
1270349b935
133918a9472
1420913cb21
1512a1ee4eb
hexb4020879

3020032121 has 16 divisors (see below), whose sum is σ = 3284643840. Its totient is φ = 2766162960.

The previous prime is 3020032117. The next prime is 3020032123. The reversal of 3020032121 is 1212300203.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3020032121 - 22 = 3020032117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3020032096 and 3020032105.

It is not an unprimeable number, because it can be changed into a prime (3020032123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 907166 + ... + 910488.

It is an arithmetic number, because the mean of its divisors is an integer number (205290240).

Almost surely, 23020032121 is an apocalyptic number.

3020032121 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3020032121 is a deficient number, since it is larger than the sum of its proper divisors (264611719).

3020032121 is a wasteful number, since it uses less digits than its factorization.

3020032121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4916.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 3020032121 is about 54954.8189060796. The cubic root of 3020032121 is about 1445.4525980140.

Adding to 3020032121 its reverse (1212300203), we get a palindrome (4232332324).

The spelling of 3020032121 in words is "three billion, twenty million, thirty-two thousand, one hundred twenty-one".

Divisors: 1 19 31 589 1543 3323 29317 47833 63137 103013 908827 1957247 5127389 97420391 158949059 3020032121