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541616389 = 1571344759
BaseRepresentation
bin100000010010000…
…110100100000101
31101202010222000021
4200102012210011
52102123211024
6125424415141
716264443346
oct4022064405
91352128007
10541616389
11258801456
121314774b1
1388296592
1451d0a0cd
1532838de4
hex20486905

541616389 has 4 divisors (see below), whose sum is σ = 541962720. Its totient is φ = 541270060.

The previous prime is 541616363. The next prime is 541616431. The reversal of 541616389 is 983616145.

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: 983616145 = 5196723229.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-541616389 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (541610389) 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, 170809 + ... + 173950.

It is an arithmetic number, because the mean of its divisors is an integer number (135490680).

Almost surely, 2541616389 is an apocalyptic number.

It is an amenable number.

541616389 is a deficient number, since it is larger than the sum of its proper divisors (346331).

541616389 is a wasteful number, since it uses less digits than its factorization.

541616389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346330.

The product of its digits is 155520, while the sum is 43.

The square root of 541616389 is about 23272.6532436678. The cubic root of 541616389 is about 815.1369857688.

The spelling of 541616389 in words is "five hundred forty-one million, six hundred sixteen thousand, three hundred eighty-nine".

Divisors: 1 1571 344759 541616389