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12901513 = 19769883
BaseRepresentation
bin110001001101…
…110010001001
3220021110112211
4301031302021
511300322023
61140305121
7214442512
oct61156211
926243484
1012901513
117312109
1243a21a1
132899441
1419dba09
1511eca0d
hexc4dc89

12901513 has 8 divisors (see below), whose sum is σ = 13613600. Its totient is φ = 12192768.

The previous prime is 12901501. The next prime is 12901517. The reversal of 12901513 is 31510921.

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 12901513 - 29 = 12901001 is a prime.

It is a super-3 number, since 3×129015133 (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12901517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14170 + ... + 15052.

It is an arithmetic number, because the mean of its divisors is an integer number (1701700).

Almost surely, 212901513 is an apocalyptic number.

It is an amenable number.

12901513 is a deficient number, since it is larger than the sum of its proper divisors (712087).

12901513 is an equidigital number, since it uses as much as digits as its factorization.

12901513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1671.

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 12901513 is about 3591.8676200551. The cubic root of 12901513 is about 234.5381785833.

The spelling of 12901513 in words is "twelve million, nine hundred one thousand, five hundred thirteen".

Divisors: 1 19 769 883 14611 16777 679027 12901513