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71348653099 = 505114125649
BaseRepresentation
bin100001001110010110…
…1100000110000101011
320211011102002010010101
41002130231200300223
52132110223344344
652435505130231
75104041354613
oct1023455406053
9224142063111
1071348653099
1128293500109
12119b2629977
136960988939
14364bb9da43
151cc8c119d4
hex109cb60c2b

71348653099 has 4 divisors (see below), whose sum is σ = 71362783800. Its totient is φ = 71334522400.

The previous prime is 71348653093. The next prime is 71348653109. The reversal of 71348653099 is 99035684317.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99035684317 = 265733726929.

It is a cyclic number.

It is not a de Polignac number, because 71348653099 - 25 = 71348653067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71348653093) 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, 7057774 + ... + 7067875.

It is an arithmetic number, because the mean of its divisors is an integer number (17840695950).

Almost surely, 271348653099 is an apocalyptic number.

71348653099 is a deficient number, since it is larger than the sum of its proper divisors (14130701).

71348653099 is a wasteful number, since it uses less digits than its factorization.

71348653099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14130700.

The product of its (nonzero) digits is 4898880, while the sum is 55.

The spelling of 71348653099 in words is "seventy-one billion, three hundred forty-eight million, six hundred fifty-three thousand, ninety-nine".

Divisors: 1 5051 14125649 71348653099