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13244872378 = 2107295320959
BaseRepresentation
bin11000101010111010…
…01011011010111010
31021012001120020012211
430111131023122322
5204111141404003
610030135325334
7646135362163
oct142535133272
937161506184
1013244872378
115687426721
12269782084a
13133103a4ba
148d90ac76a
15527bc196d
hex31574b6ba

13244872378 has 16 divisors (see below), whose sum is σ = 20060732160. Its totient is φ = 6558009696.

The previous prime is 13244872369. The next prime is 13244872379. The reversal of 13244872378 is 87327844231.

It is not an unprimeable number, because it can be changed into a prime (13244872379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 621463 + ... + 642421.

It is an arithmetic number, because the mean of its divisors is an integer number (1253795760).

Almost surely, 213244872378 is an apocalyptic number.

13244872378 is a deficient number, since it is larger than the sum of its proper divisors (6815859782).

13244872378 is a wasteful number, since it uses less digits than its factorization.

13244872378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24021.

The product of its digits is 1806336, while the sum is 49.

The spelling of 13244872378 in words is "thirteen billion, two hundred forty-four million, eight hundred seventy-two thousand, three hundred seventy-eight".

Divisors: 1 2 107 214 2953 5906 20959 41918 315971 631942 2242613 4485226 61891927 123783854 6622436189 13244872378