Search a number
-
+
55378638001 = 3071213148711
BaseRepresentation
bin110011100100110100…
…101111010010110001
312021221102200021212201
4303210310233102301
51401403412404001
641235100223201
74000222441051
oct634464572261
9167842607781
1055378638001
1121538885425
12a89623ab01
1352b71a086b
142974bd5561
151691b90501
hexce4d2f4b1

55378638001 has 8 divisors (see below), whose sum is σ = 55605201344. Its totient is φ = 55152375120.

The previous prime is 55378637989. The next prime is 55378638013. The reversal of 55378638001 is 10083687355.

It is an interprime number because it is at equal distance from previous prime (55378637989) and next prime (55378638013).

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 55378638001 - 213 = 55378629809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55378638041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298036 + ... + 446746.

It is an arithmetic number, because the mean of its divisors is an integer number (6950650168).

Almost surely, 255378638001 is an apocalyptic number.

It is an amenable number.

55378638001 is a deficient number, since it is larger than the sum of its proper divisors (226563343).

55378638001 is a wasteful number, since it uses less digits than its factorization.

55378638001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150231.

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 55378638001 in words is "fifty-five billion, three hundred seventy-eight million, six hundred thirty-eight thousand, one".

Divisors: 1 307 1213 148711 372391 45654277 180386443 55378638001