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13122241391 = 711091690357
BaseRepresentation
bin11000011100010010…
…11000001101101111
31020212111210221010102
430032021120031233
5203333243211031
610010035101315
7643116132350
oct141611301557
936774727112
1013122241391
1156241881a6
12266274183b
131311801b9c
148c6aa9d27
1551c04b7cb
hex30e25836f

13122241391 has 8 divisors (see below), whose sum is σ = 15010379040. Its totient is φ = 11237486688.

The previous prime is 13122241373. The next prime is 13122241399. The reversal of 13122241391 is 19314222131.

13122241391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13122241391 is a prime.

It is a super-2 number, since 2×131222413912 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122241399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 837416 + ... + 852941.

It is an arithmetic number, because the mean of its divisors is an integer number (1876297380).

Almost surely, 213122241391 is an apocalyptic number.

13122241391 is a deficient number, since it is larger than the sum of its proper divisors (1888137649).

13122241391 is a wasteful number, since it uses less digits than its factorization.

13122241391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691473.

The product of its digits is 2592, while the sum is 29.

The spelling of 13122241391 in words is "thirteen billion, one hundred twenty-two million, two hundred forty-one thousand, three hundred ninety-one".

Divisors: 1 7 1109 7763 1690357 11832499 1874605913 13122241391