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19834156714 = 29917078357
BaseRepresentation
bin10010011110001101…
…010011011010101010
31220012021110120000211
4102132031103122222
5311110021003324
613040042451334
71301336356531
oct223615233252
956167416024
1019834156714
118458956559
123a16503b4a
131b4121c608
14d62275318
157b140c294
hex49e3536aa

19834156714 has 4 divisors (see below), whose sum is σ = 29751235074. Its totient is φ = 9917078356.

The previous prime is 19834156711. The next prime is 19834156723. The reversal of 19834156714 is 41765143891.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41765143891 = 68927605933.

It can be written as a sum of positive squares in only one way, i.e., 19205802225 + 628354489 = 138585^2 + 25067^2 .

It is a super-2 number, since 2×198341567142 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19834156711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4958539177 + ... + 4958539180.

Almost surely, 219834156714 is an apocalyptic number.

19834156714 is a deficient number, since it is larger than the sum of its proper divisors (9917078360).

19834156714 is an equidigital number, since it uses as much as digits as its factorization.

19834156714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9917078359.

The product of its digits is 725760, while the sum is 49.

The spelling of 19834156714 in words is "nineteen billion, eight hundred thirty-four million, one hundred fifty-six thousand, seven hundred fourteen".

Divisors: 1 2 9917078357 19834156714