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7797313061 = 25033115187
BaseRepresentation
bin1110100001100000…
…11000111000100101
3202010102000112200122
413100300120320211
5111432103004221
63325415251325
7364140032066
oct72060307045
922112015618
107797313061
11334141a78a
121617379b45
13973557b15
1453d7c656d
1530980eeab
hex1d0c18e25

7797313061 has 4 divisors (see below), whose sum is σ = 7800430752. Its totient is φ = 7794195372.

The previous prime is 7797313049. The next prime is 7797313133. The reversal of 7797313061 is 1603137977.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7797313061 - 218 = 7797050917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7797313001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1555091 + ... + 1560096.

It is an arithmetic number, because the mean of its divisors is an integer number (1950107688).

Almost surely, 27797313061 is an apocalyptic number.

It is an amenable number.

7797313061 is a deficient number, since it is larger than the sum of its proper divisors (3117691).

7797313061 is a wasteful number, since it uses less digits than its factorization.

7797313061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3117690.

The product of its (nonzero) digits is 166698, while the sum is 44.

The square root of 7797313061 is about 88302.3955564061. The cubic root of 7797313061 is about 1982.9647335688.

The spelling of 7797313061 in words is "seven billion, seven hundred ninety-seven million, three hundred thirteen thousand, sixty-one".

Divisors: 1 2503 3115187 7797313061