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13420367197 = 9729831451
BaseRepresentation
bin11000111111110101…
…01000110101011101
31021122021210021211221
430133322220311131
5204441103222242
610055405013341
7653366144656
oct143772506535
937567707757
1013420367197
1157674a1566
122726554251
13135b4c48a3
1491451252d
155382da167
hex31fea8d5d

13420367197 has 12 divisors (see below), whose sum is σ = 13583297376. Its totient is φ = 13259356800.

The previous prime is 13420367179. The next prime is 13420367203. The reversal of 13420367197 is 79176302431.

It is a de Polignac number, because none of the positive numbers 2k-13420367197 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 (13420367117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9248322 + ... + 9249772.

It is an arithmetic number, because the mean of its divisors is an integer number (1131941448).

Almost surely, 213420367197 is an apocalyptic number.

It is an amenable number.

13420367197 is a deficient number, since it is larger than the sum of its proper divisors (162930179).

13420367197 is an frugal number, since it uses more digits than its factorization.

13420367197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2628 (or 2531 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 43.

The spelling of 13420367197 in words is "thirteen billion, four hundred twenty million, three hundred sixty-seven thousand, one hundred ninety-seven".

Divisors: 1 97 983 1451 9409 95351 140747 1426333 9249047 13652459 138354301 13420367197