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13451042125 = 53115393329
BaseRepresentation
bin11001000011011111…
…01001110101001101
31021201102111201221101
430201233221311031
5210021431322000
610102422303101
7654220654153
oct144157516515
937642451841
1013451042125
115782843044
122734887a91
131364974b31
149186193d3
1553ad48e6a
hex321be9d4d

13451042125 has 16 divisors (see below), whose sum is σ = 16801639920. Its totient is φ = 10751385600.

The previous prime is 13451042113. The next prime is 13451042149. The reversal of 13451042125 is 52124015431.

It can be written as a sum of positive squares in 8 ways, for example, as 4024379844 + 9426662281 = 63438^2 + 97091^2 .

It is not a de Polignac number, because 13451042125 - 29 = 13451041613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13451042093 and 13451042102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97461 + ... + 190789.

It is an arithmetic number, because the mean of its divisors is an integer number (1050102495).

Almost surely, 213451042125 is an apocalyptic number.

It is an amenable number.

13451042125 is a deficient number, since it is larger than the sum of its proper divisors (3350597795).

13451042125 is an equidigital number, since it uses as much as digits as its factorization.

13451042125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94497 (or 94487 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 13451042125 its reverse (52124015431), we get a palindrome (65575057556).

The spelling of 13451042125 in words is "thirteen billion, four hundred fifty-one million, forty-two thousand, one hundred twenty-five".

Divisors: 1 5 25 125 1153 5765 28825 93329 144125 466645 2333225 11666125 107608337 538041685 2690208425 13451042125