Search a number
-
+
7820505033 = 311222994079
BaseRepresentation
bin1110100100010001…
…10110111111001001
3202012000122211002120
413102020312333021
5112004022130113
63332004321453
7364541124135
oct72210667711
922160584076
107820505033
113353520200
1216230a3289
139782b8093
145429023c5
1530b891a23
hex1d2236fc9

7820505033 has 24 divisors (see below), whose sum is σ = 11511628800. Its totient is φ = 4718952480.

The previous prime is 7820505031. The next prime is 7820505059. The reversal of 7820505033 is 3305050287.

It is not a de Polignac number, because 7820505033 - 21 = 7820505031 is a prime.

It is a super-2 number, since 2×78205050332 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 7820504985 and 7820505003.

It is not an unprimeable number, because it can be changed into a prime (7820505031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36088 + ... + 130166.

It is an arithmetic number, because the mean of its divisors is an integer number (479651200).

Almost surely, 27820505033 is an apocalyptic number.

It is an amenable number.

7820505033 is a deficient number, since it is larger than the sum of its proper divisors (3691123767).

7820505033 is a wasteful number, since it uses less digits than its factorization.

7820505033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94333 (or 94322 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 7820505033 is about 88433.6193593816. The cubic root of 7820505033 is about 1984.9288008352.

The spelling of 7820505033 in words is "seven billion, eight hundred twenty million, five hundred five thousand, thirty-three".

Divisors: 1 3 11 33 121 229 363 687 2519 7557 27709 83127 94079 282237 1034869 3104607 11383559 21544091 34150677 64632273 236985001 710955003 2606835011 7820505033