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5554173421 = 18130686041
BaseRepresentation
bin1010010110000110…
…11111010111101101
3112100002011020120201
411023003133113231
542333332022141
62315045113501
7254431460266
oct51303372755
915302136521
105554173421
1123a0205775
1210b00b8891
136a6900864
143a991996d
15227921031
hex14b0df5ed

5554173421 has 4 divisors (see below), whose sum is σ = 5584859644. Its totient is φ = 5523487200.

The previous prime is 5554173407. The next prime is 5554173451. The reversal of 5554173421 is 1243714555.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1243714555 = 5248742911.

It can be written as a sum of positive squares in 2 ways, for example, as 849722500 + 4704450921 = 29150^2 + 68589^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-5554173421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5554173451) 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, 15342840 + ... + 15343201.

It is an arithmetic number, because the mean of its divisors is an integer number (1396214911).

Almost surely, 25554173421 is an apocalyptic number.

It is an amenable number.

5554173421 is a deficient number, since it is larger than the sum of its proper divisors (30686223).

5554173421 is a wasteful number, since it uses less digits than its factorization.

5554173421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30686222.

The product of its digits is 84000, while the sum is 37.

The square root of 5554173421 is about 74526.3270328010. The cubic root of 5554173421 is about 1770.9507294098.

Adding to 5554173421 its reverse (1243714555), we get a palindrome (6797887976).

The spelling of 5554173421 in words is "five billion, five hundred fifty-four million, one hundred seventy-three thousand, four hundred twenty-one".

Divisors: 1 181 30686041 5554173421