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54111312401 = 87547618083
BaseRepresentation
bin110010011001010010…
…010001101000010001
312011200002222110222112
4302121102101220101
51341304443444101
640505225115105
73623633365166
oct623122215021
9164602873875
1054111312401
1120a484749a3
12a5a1928a95
135144765c63
14289477c06d
15161a7a66bb
hexc99491a11

54111312401 has 4 divisors (see below), whose sum is σ = 54112018032. Its totient is φ = 54110606772.

The previous prime is 54111312389. The next prime is 54111312403. The reversal of 54111312401 is 10421311145.

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 a de Polignac number, because none of the positive numbers 2k-54111312401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54111312403) 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, 221495 + ... + 396588.

It is an arithmetic number, because the mean of its divisors is an integer number (13528004508).

Almost surely, 254111312401 is an apocalyptic number.

It is an amenable number.

54111312401 is a deficient number, since it is larger than the sum of its proper divisors (705631).

54111312401 is an equidigital number, since it uses as much as digits as its factorization.

54111312401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705630.

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 54111312401 its reverse (10421311145), we get a palindrome (64532623546).

The spelling of 54111312401 in words is "fifty-four billion, one hundred eleven million, three hundred twelve thousand, four hundred one".

Divisors: 1 87547 618083 54111312401