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7820933049085 = 513192333302069
BaseRepresentation
bin111000111001111001111…
…1011111010101011111101
31000200200012021022210100011
41301303303323322223331
52011114232330032320
624344515333503221
71435021004022652
oct161636373725375
930620167283304
107820933049085
1125459258a6702
12a638ba7a1b11
13449684378080
141d076c763c29
15d869161605a
hex71cf3efaafd

7820933049085 has 24 divisors (see below), whose sum is σ = 10666999448280. Its totient is φ = 5471486748288.

The previous prime is 7820933049031. The next prime is 7820933049101. The reversal of 7820933049085 is 5809403390287.

It can be written as a sum of positive squares in 4 ways, for example, as 741491487801 + 7079441561284 = 861099^2 + 2660722^2 .

It is not a de Polignac number, because 7820933049085 - 217 = 7820932918013 is a prime.

It is a super-2 number, since 2×78209330490852 (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 166627570 + ... + 166674499.

It is an arithmetic number, because the mean of its divisors is an integer number (444458310345).

Almost surely, 27820933049085 is an apocalyptic number.

It is an amenable number.

7820933049085 is a deficient number, since it is larger than the sum of its proper divisors (2846066399195).

7820933049085 is a wasteful number, since it uses less digits than its factorization.

7820933049085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333302125 (or 333302106 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 58.

The spelling of 7820933049085 in words is "seven trillion, eight hundred twenty billion, nine hundred thirty-three million, forty-nine thousand, eighty-five".

Divisors: 1 5 13 19 65 95 247 361 1235 1805 4693 23465 333302069 1666510345 4332926897 6332739311 21664634485 31663696555 82325611043 120322046909 411628055215 601610234545 1564186609817 7820933049085