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13122420051415 = 55281496967243
BaseRepresentation
bin1011111011110100110100…
…1011111000110111010111
31201110111021000102111012211
42332331031023320313113
53204444204013121130
643524205003054251
72523030542022313
oct276751513706727
951414230374184
1013122420051415
1141aa207022304
12157b267b11387
1374259235c06c
143351b292ab43
1517b526d24a2a
hexbef4d2f8dd7

13122420051415 has 8 divisors (see below), whose sum is σ = 15749885896848. Its totient is φ = 10495948151040.

The previous prime is 13122420051409. The next prime is 13122420051421. The reversal of 13122420051415 is 51415002422131.

It is an interprime number because it is at equal distance from previous prime (13122420051409) and next prime (13122420051421).

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

It is not a de Polignac number, because 13122420051415 - 227 = 13122285833687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248457217 + ... + 248510026.

It is an arithmetic number, because the mean of its divisors is an integer number (1968735737106).

Almost surely, 213122420051415 is an apocalyptic number.

13122420051415 is a deficient number, since it is larger than the sum of its proper divisors (2627465845433).

13122420051415 is an equidigital number, since it uses as much as digits as its factorization.

13122420051415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496972529.

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 13122420051415 its reverse (51415002422131), we get a palindrome (64537422473546).

The spelling of 13122420051415 in words is "thirteen trillion, one hundred twenty-two billion, four hundred twenty million, fifty-one thousand, four hundred fifteen".

Divisors: 1 5 5281 26405 496967243 2484836215 2624484010283 13122420051415