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16264143541 = 81120054431
BaseRepresentation
bin11110010010110101…
…10010001010110101
31112222110212002121201
433021122302022311
5231302110043131
611245513012501
71114016640052
oct171132621265
945873762551
1016264143541
116996759848
12319a9b4131
1316c270b499
14b04090029
15652cc0761
hex3c96b22b5

16264143541 has 4 divisors (see below), whose sum is σ = 16284198784. Its totient is φ = 16244088300.

The previous prime is 16264143509. The next prime is 16264143611. The reversal of 16264143541 is 14534146261.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14534146261 = 112199129539.

It is a cyclic number.

It is not a de Polignac number, because 16264143541 - 25 = 16264143509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16264143541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16264143941) 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, 10026405 + ... + 10028026.

It is an arithmetic number, because the mean of its divisors is an integer number (4071049696).

Almost surely, 216264143541 is an apocalyptic number.

It is an amenable number.

16264143541 is a deficient number, since it is larger than the sum of its proper divisors (20055243).

16264143541 is an equidigital number, since it uses as much as digits as its factorization.

16264143541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20055242.

The product of its digits is 69120, while the sum is 37.

The spelling of 16264143541 in words is "sixteen billion, two hundred sixty-four million, one hundred forty-three thousand, five hundred forty-one".

Divisors: 1 811 20054431 16264143541