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4254120161 = 43934310589
BaseRepresentation
bin1111110110010000…
…1011100011100001
3101222110212200202222
43331210023203201
532203023321121
61542044320425
7210264265454
oct37544134341
911873780688
104254120161
111893381495
129a8843115
1352a477585
142c4dc349b
1519d7200ab
hexfd90b8e1

4254120161 has 8 divisors (see below), whose sum is σ = 4353930240. Its totient is φ = 4154350032.

The previous prime is 4254120149. The next prime is 4254120193. The reversal of 4254120161 is 1610214524.

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

It is a cyclic number.

It is not a de Polignac number, because 4254120161 - 218 = 4253858017 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 4254120161.

It is not an unprimeable number, because it can be changed into a prime (4254120061) 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, 396455 + ... + 407043.

It is an arithmetic number, because the mean of its divisors is an integer number (544241280).

Almost surely, 24254120161 is an apocalyptic number.

It is an amenable number.

4254120161 is a deficient number, since it is larger than the sum of its proper divisors (99810079).

4254120161 is a wasteful number, since it uses less digits than its factorization.

4254120161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19975.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 4254120161 is about 65223.6165893919. The cubic root of 4254120161 is about 1620.3291716664.

Adding to 4254120161 its reverse (1610214524), we get a palindrome (5864334685).

The spelling of 4254120161 in words is "four billion, two hundred fifty-four million, one hundred twenty thousand, one hundred sixty-one".

Divisors: 1 43 9343 10589 401749 455327 98933027 4254120161