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13043251011 = 37621107191
BaseRepresentation
bin11000010010111000…
…00011011101000011
31020200000011210200210
430021130003131003
5203203033013021
65554134045203
7641136542610
oct141134033503
936600153623
1013043251011
11559363659a
1226401a9803
1312cb33620b
148ba3c7507
15515146e76
hex309703743

13043251011 has 8 divisors (see below), whose sum is σ = 19875430144. Its totient is φ = 7453286280.

The previous prime is 13043250971. The next prime is 13043251021. The reversal of 13043251011 is 11015234031.

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

It is not a de Polignac number, because 13043251011 - 26 = 13043250947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 621107191 = 13043251011 / (1 + 3 + 0 + 4 + 3 + 2 + 5 + 1 + 0 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13043251021) 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, 310553575 + ... + 310553616.

It is an arithmetic number, because the mean of its divisors is an integer number (2484428768).

Almost surely, 213043251011 is an apocalyptic number.

13043251011 is a deficient number, since it is larger than the sum of its proper divisors (6832179133).

13043251011 is an equidigital number, since it uses as much as digits as its factorization.

13043251011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621107201.

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 13043251011 its reverse (11015234031), we get a palindrome (24058485042).

The spelling of 13043251011 in words is "thirteen billion, forty-three million, two hundred fifty-one thousand, eleven".

Divisors: 1 3 7 21 621107191 1863321573 4347750337 13043251011