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13447275019 = 227109754001
BaseRepresentation
bin11001000011000010…
…10010001000001011
31021201011102100102221
430201201102020023
5210020000300034
610102205434511
7654143644303
oct144141221013
937634370387
1013447275019
1157806aa832
12273356ba37
131363c56289
14917d18603
1553a852bb4
hex32185220b

13447275019 has 8 divisors (see below), whose sum is σ = 13519076688. Its totient is φ = 13375584000.

The previous prime is 13447274993. The next prime is 13447275041. The reversal of 13447275019 is 91057274431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13447275019 - 219 = 13446750731 is a prime.

It is a super-2 number, since 2×134472750192 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13447275719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222019 + ... + 276019.

It is an arithmetic number, because the mean of its divisors is an integer number (1689884586).

Almost surely, 213447275019 is an apocalyptic number.

13447275019 is a deficient number, since it is larger than the sum of its proper divisors (71801669).

13447275019 is a wasteful number, since it uses less digits than its factorization.

13447275019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55325.

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 13447275019 in words is "thirteen billion, four hundred forty-seven million, two hundred seventy-five thousand, nineteen".

Divisors: 1 227 1097 54001 249019 12258227 59239097 13447275019