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14520144169 = 20071723439
BaseRepresentation
bin11011000010111011…
…11101000100101001
31101110221012202020101
431201131331010221
5214214124103134
610400453025401
71022552121556
oct154135750451
941427182211
1014520144169
116181274253
122992925261
1314a52c7bab
149ba5d3a2d
1559eb29e14
hex36177d129

14520144169 has 4 divisors (see below), whose sum is σ = 14520887680. Its totient is φ = 14519400660.

The previous prime is 14520144167. The next prime is 14520144179. The reversal of 14520144169 is 96144102541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 14520144169 - 21 = 14520144167 is a prime.

It is a super-2 number, since 2×145201441692 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14520144167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341649 + ... + 381790.

It is an arithmetic number, because the mean of its divisors is an integer number (3630221920).

Almost surely, 214520144169 is an apocalyptic number.

It is an amenable number.

14520144169 is a deficient number, since it is larger than the sum of its proper divisors (743511).

14520144169 is an equidigital number, since it uses as much as digits as its factorization.

14520144169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743510.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 14520144169 in words is "fourteen billion, five hundred twenty million, one hundred forty-four thousand, one hundred sixty-nine".

Divisors: 1 20071 723439 14520144169