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13864785151 = 72377647427
BaseRepresentation
bin11001110100110011…
…11101010011111111
31022210021001001200011
430322121331103333
5211343341111101
610211442244051
71000403505100
oct147231752377
938707031604
1013864785151
115975345328
12282b356627
1313cc5b88a9
1495755a3a7
15562324751
hex33a67d4ff

13864785151 has 12 divisors (see below), whose sum is σ = 16564329048. Its totient is φ = 11562908112.

The previous prime is 13864785139. The next prime is 13864785161. The reversal of 13864785151 is 15158746831.

It is a happy number.

It is not a de Polignac number, because 13864785151 - 211 = 13864783103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13864785095 and 13864785104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13864785161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3821901 + ... + 3825526.

It is an arithmetic number, because the mean of its divisors is an integer number (1380360754).

Almost surely, 213864785151 is an apocalyptic number.

13864785151 is a deficient number, since it is larger than the sum of its proper divisors (2699543897).

13864785151 is an equidigital number, since it uses as much as digits as its factorization.

13864785151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7647478 (or 7647471 counting only the distinct ones).

The product of its digits is 806400, while the sum is 49.

The spelling of 13864785151 in words is "thirteen billion, eight hundred sixty-four million, seven hundred eighty-five thousand, one hundred fifty-one".

Divisors: 1 7 37 49 259 1813 7647427 53531989 282954799 374723923 1980683593 13864785151