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13270826281 = 234359227431
BaseRepresentation
bin11000101110000000…
…01011110100101001
31021020212101211021111
430113000023310221
5204134312420111
610032503510321
7646602106426
oct142700136451
937225354244
1013270826281
1156a0043229
1226a44583a1
13133652693b
148dc706d4d
1552a0eba21
hex31700bd29

13270826281 has 16 divisors (see below), whose sum is σ = 14410091520. Its totient is φ = 12188428560.

The previous prime is 13270826251. The next prime is 13270826299. The reversal of 13270826281 is 18262807231.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13270826281 - 213 = 13270818089 is a prime.

It is a super-2 number, since 2×132708262812 (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 (13270826201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55365 + ... + 172066.

It is an arithmetic number, because the mean of its divisors is an integer number (900630720).

Almost surely, 213270826281 is an apocalyptic number.

It is an amenable number.

13270826281 is a deficient number, since it is larger than the sum of its proper divisors (1139265239).

13270826281 is a wasteful number, since it uses less digits than its factorization.

13270826281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227556.

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 13270826281 in words is "thirteen billion, two hundred seventy million, eight hundred twenty-six thousand, two hundred eighty-one".

Divisors: 1 23 43 59 989 1357 2537 58351 227431 5230913 9779533 13418429 224929259 308623867 576992447 13270826281