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6948693681 = 32316231227
BaseRepresentation
bin1100111100010110…
…01010011010110001
3122221021012012202020
412132023022122301
5103212331144211
63105302342053
7334123631106
oct63613123261
918837165666
106948693681
112a463a1456
12141b12a929
138697b1087
1449cc02aad
152aa082306
hex19e2ca6b1

6948693681 has 4 divisors (see below), whose sum is σ = 9264924912. Its totient is φ = 4632462452.

The previous prime is 6948693673. The next prime is 6948693701. The reversal of 6948693681 is 1863968496.

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 6948693681 - 23 = 6948693673 is a prime.

It is a super-2 number, since 2×69486936812 = 96568687744738659522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6948693181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1158115611 + ... + 1158115616.

It is an arithmetic number, because the mean of its divisors is an integer number (2316231228).

Almost surely, 26948693681 is an apocalyptic number.

It is an amenable number.

6948693681 is a deficient number, since it is larger than the sum of its proper divisors (2316231231).

6948693681 is a wasteful number, since it uses less digits than its factorization.

6948693681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2316231230.

The product of its digits is 13436928, while the sum is 60.

The square root of 6948693681 is about 83358.8248537610. The cubic root of 6948693681 is about 1908.2461245087.

The spelling of 6948693681 in words is "six billion, nine hundred forty-eight million, six hundred ninety-three thousand, six hundred eighty-one".

Divisors: 1 3 2316231227 6948693681