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13278197119 = 111207108829
BaseRepresentation
bin11000101110111000…
…10011010101111111
31021021101021022011111
430113130103111333
5204143204301434
610033325502451
7650021545645
oct142734232577
937241238144
1013278197119
1156a4218030
1226a6a11a27
131337c07895
148dd6a5195
1552aaa5964
hex31771357f

13278197119 has 4 divisors (see below), whose sum is σ = 14485305960. Its totient is φ = 12071088280.

The previous prime is 13278197071. The next prime is 13278197129. The reversal of 13278197119 is 91179187231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13278197119 - 217 = 13278066047 is a prime.

It is a super-2 number, since 2×132781971192 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13278197129) 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, 603554404 + ... + 603554425.

It is an arithmetic number, because the mean of its divisors is an integer number (3621326490).

Almost surely, 213278197119 is an apocalyptic number.

13278197119 is a deficient number, since it is larger than the sum of its proper divisors (1207108841).

13278197119 is a wasteful number, since it uses less digits than its factorization.

13278197119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207108840.

The product of its digits is 190512, while the sum is 49.

The spelling of 13278197119 in words is "thirteen billion, two hundred seventy-eight million, one hundred ninety-seven thousand, one hundred nineteen".

Divisors: 1 11 1207108829 13278197119